diff --git a/resources/assets/js/App.vue b/resources/assets/js/App.vue
index 03562ac6f..9802c2801 100755
--- a/resources/assets/js/App.vue
+++ b/resources/assets/js/App.vue
@@ -1,7 +1,7 @@
 <template>
     <div id="app">
         <keep-alive>
-            <router-view class="child-view" :class="{'view-768': $store.state.windowMax768}"></router-view>
+            <router-view class="child-view"></router-view>
         </keep-alive>
         <Spinner/>
         <RightBottom/>
@@ -58,7 +58,7 @@ export default {
     },
 
     computed: {
-        ...mapState(['ws', 'userId', 'userToken']),
+        ...mapState(['ws', 'userId', 'userToken', 'windowMax768']),
     },
 
     watch: {
diff --git a/resources/assets/js/components/GanttView.vue b/resources/assets/js/components/GanttView.vue
index ae8848f48..8ae5b1efe 100644
--- a/resources/assets/js/components/GanttView.vue
+++ b/resources/assets/js/components/GanttView.vue
@@ -6,7 +6,6 @@
             </div>
             <ul ref="ganttItem"
                 class="gantt-item"
-                :style="ganttItemStyle"
                 @scroll="itemScrollListener"
                 @mouseenter="mouseType='item'">
                 <li v-for="(item, key) in lists" :key="key">
@@ -103,7 +102,6 @@ export default {
         }
     },
     computed: {
-        ...mapState(['touchBackInProgress']),
         monthNum() {
             const {ganttWidth, dateWidth} = this;
             return Math.floor(ganttWidth / dateWidth / 30) + 2
@@ -232,13 +230,6 @@ export default {
                 return customStyle
             }
         },
-        ganttItemStyle() {
-            const style = {}
-            if (this.touchBackInProgress) {
-                style.overflow = 'hidden !important';
-            }
-            return style
-        },
     },
     methods: {
         itemScrollListener(e) {
@@ -376,265 +367,3 @@ export default {
     }
 }
 </script>
-
-<style lang="scss" scoped>
-.common-gantt {
-    position: absolute;
-    top: 0;
-    left: 0;
-    right: 0;
-    bottom: 0;
-    display: flex;
-    flex-direction: row;
-    align-items: self-start;
-    color: #747a81;
-    * {
-        box-sizing: border-box;
-    }
-    .gantt-left {
-        flex-grow:0;
-        flex-shrink:0;
-        height: 100%;
-        background-color: #ffffff;
-        position: relative;
-        display: flex;
-        flex-direction: column;
-        &:after {
-            content: "";
-            position: absolute;
-            top: 0;
-            right: 0;
-            bottom: 0;
-            width: 1px;
-            background-color: rgba(237, 241, 242, 0.75);
-        }
-        .gantt-title {
-            height: 76px;
-            flex-grow: 0;
-            flex-shrink: 0;
-            background-color: #F9FAFB;
-            padding-left: 12px;
-            overflow: hidden;
-            .gantt-title-text {
-                line-height: 100px;
-                max-width: 200px;
-                overflow: hidden;
-                text-overflow: ellipsis;
-                white-space: nowrap;
-                font-weight: 600;
-            }
-        }
-        .gantt-item {
-            transform: translateZ(0);
-            max-height: 100%;
-            overflow: auto;
-            -ms-overflow-style: none;
-            &::-webkit-scrollbar {
-                display: none;
-            }
-            > li {
-                height: 40px;
-                border-bottom: 1px solid rgba(237, 241, 242, 0.75);
-                position: relative;
-                display: flex;
-                align-items: center;
-                padding-left: 12px;
-                &:hover {
-                    .item-icon {
-                        display: flex;
-                    }
-                }
-                .item-overdue {
-                    flex-grow:0;
-                    flex-shrink:0;
-                    color: #ffffff;
-                    margin-right: 4px;
-                    background-color: #ff0000;
-                    padding: 1px 3px;
-                    border-radius: 3px;
-                    font-size: 12px;
-                    line-height: 18px;
-                }
-                .item-title {
-                    flex: 1;
-                    padding-right: 12px;
-                    cursor: default;
-                    overflow: hidden;
-                    text-overflow: ellipsis;
-                    white-space: nowrap;
-                    &.complete {
-                        text-decoration: line-through;
-                    }
-                    &.overdue {
-                        font-weight: 600;
-                    }
-                }
-                .item-icon {
-                    display: none;
-                    align-items: center;
-                    justify-content: center;
-                    width: 32px;
-                    margin-right: 2px;
-                    font-size: 16px;
-                    color: #888888;
-                }
-            }
-        }
-    }
-    .gantt-right {
-        flex: 1;
-        height: 100%;
-        background-color: #ffffff;
-        position: relative;
-        overflow: hidden;
-        .gantt-chart {
-            position: absolute;
-            top: 0;
-            left: 0;
-            right: 0;
-            bottom: 0;
-            transform: translateZ(0);
-            .gantt-month {
-                display: flex;
-                align-items: center;
-                position: absolute;
-                top: 0;
-                left: 0;
-                right: 0;
-                z-index: 1;
-                height: 26px;
-                line-height: 20px;
-                font-size: 14px;
-                background-color: #F9FAFB;
-                > li {
-                    flex-grow: 0;
-                    flex-shrink: 0;
-                    height: 100%;
-                    position: relative;
-                    overflow: hidden;
-                    &:after {
-                        content: "";
-                        position: absolute;
-                        top: 0;
-                        right: 0;
-                        width: 1px;
-                        height: 100%;
-                        background-color: rgba(237, 241, 242, 0.75);
-                    }
-                    .month-format {
-                        overflow: hidden;
-                        white-space: nowrap;
-                        padding: 6px 6px 0;
-                    }
-                }
-            }
-            .gantt-date {
-                display: flex;
-                align-items: center;
-                position: absolute;
-                top: 26px;
-                left: 0;
-                right: 0;
-                bottom: 0;
-                z-index: 2;
-                cursor: move;
-                &:before {
-                    content: "";
-                    position: absolute;
-                    top: 0;
-                    left: 0;
-                    right: 0;
-                    height: 50px;
-                    background-color: #F9FAFB;
-                }
-                > li {
-                    flex-grow: 0;
-                    flex-shrink: 0;
-                    height: 100%;
-                    position: relative;
-                    overflow: hidden;
-                    &:after {
-                        content: "";
-                        position: absolute;
-                        top: 0;
-                        right: 0;
-                        width: 1px;
-                        height: 100%;
-                        background-color: rgba(237, 241, 242, 0.75);
-                    }
-                    .date-format {
-                        overflow: hidden;
-                        white-space: nowrap;
-                        display: flex;
-                        flex-direction: column;
-                        align-items: center;
-                        justify-content: center;
-                        height: 44px;
-                        .format-day {
-                            line-height: 28px;
-                            font-size: 18px;
-                        }
-                        .format-week {
-                            line-height: 16px;
-                            font-weight: 300;
-                            font-size: 13px;
-                        }
-                    }
-                }
-            }
-            .gantt-timeline {
-                position: absolute;
-                top: 76px;
-                left: 0;
-                right: 0;
-                bottom: 0;
-                z-index: 3;
-                overflow-x: hidden;
-                overflow-y: auto;
-                > li {
-                    cursor: default;
-                    height: 40px;
-                    border-bottom: 1px solid rgba(237, 241, 242, 0.75);
-                    position: relative;
-                    .timeline-item {
-                        position: absolute;
-                        top: 0;
-                        touch-action: none;
-                        pointer-events: auto;
-                        padding: 4px;
-                        margin-top: 4px;
-                        background: #e74c3c;
-                        border-radius: 18px;
-                        color: #fff;
-                        display: flex;
-                        align-items: center;
-                        will-change: contents;
-                        height: 32px;
-                        .timeline-title {
-                            touch-action: none;
-                            flex-grow: 1;
-                            overflow: hidden;
-                            text-overflow: ellipsis;
-                            white-space: nowrap;
-                            margin-left: 4px;
-                            margin-right: 10px;
-                        }
-                        .timeline-resizer {
-                            height: 22px;
-                            touch-action: none;
-                            width: 8px;
-                            background: rgba(255,255,255,0.1);
-                            cursor: ew-resize;
-                            flex-shrink: 0;
-                            will-change: visibility;
-                            position: absolute;
-                            top: 5px;
-                            right: 5px;
-                        }
-                    }
-                }
-            }
-        }
-    }
-}
-</style>
diff --git a/resources/assets/js/components/Mobile/Back.vue b/resources/assets/js/components/Mobile/Back.vue
index 8aee268e6..08bab6b86 100644
--- a/resources/assets/js/components/Mobile/Back.vue
+++ b/resources/assets/js/components/Mobile/Back.vue
@@ -50,8 +50,13 @@ export default {
     },
 
     watch: {
-        show(s) {
-            this.$store.state.touchBackInProgress = s;
+        show(state) {
+            if (state) {
+                document.body.classList.add("touch-back");
+            } else {
+                document.body.classList.remove("touch-back");
+            }
+            this.$store.state.touchBackInProgress = state;
         }
     },
 
diff --git a/resources/assets/js/components/RightBottom.vue b/resources/assets/js/components/RightBottom.vue
index b7a913455..961bab041 100644
--- a/resources/assets/js/components/RightBottom.vue
+++ b/resources/assets/js/components/RightBottom.vue
@@ -26,7 +26,7 @@
                 </div>
                 <div v-if="$Platform === 'mac'" class="notification-tip">{{$L('离最新版本只有一步之遥了！重新启动应用即可完成更新。')}}</div>
             </div>
-            <MarkdownPreview class="notification-body overlay-y" :initialValue="updateNote"/>
+            <MarkdownPreview class="notification-body scrollbar-overlay" :initialValue="updateNote"/>
             <div slot="footer" class="adaption">
                 <Button type="default" @click="updateShow=false">{{$L('稍后')}}</Button>
                 <Button type="primary" :loading="updateIng" @click="updateQuitAndInstall">{{$L($Platform === 'mac' ? '重新启动' : '立即升级')}}</Button>
diff --git a/resources/assets/js/directives/longpress.js b/resources/assets/js/directives/longpress.js
new file mode 100644
index 000000000..d397fe1f5
--- /dev/null
+++ b/resources/assets/js/directives/longpress.js
@@ -0,0 +1,70 @@
+const isSupportTouch = "ontouchend" in document;
+// 长按指令
+const longpress = {
+    bind: function (el, binding) {
+        if (!isSupportTouch) {
+            return
+        }
+        let delay = 500,
+            callback = binding.value;
+        if ($A.isJson(binding.value)) {
+            delay = binding.value.delay || 500;
+            callback = binding.value.callback;
+        }
+        if (typeof callback !== 'function') {
+            throw 'callback must be a function'
+        }
+
+        // 定义变量
+        let pressTimer = null
+        let isCall = false
+        // 创建计时器（ 500秒后执行函数 ）
+        el.__longpressStart__ = (e) => {
+            if (e.type === 'click' && e.button !== 0) {
+                return
+            }
+            isCall = false
+            if (pressTimer === null) {
+                pressTimer = setTimeout(() => {
+                    isCall = true
+                    callback(e, el)
+                }, delay)
+            }
+        }
+        // 取消计时器
+        el.__longpressCancel__ = (e) => {
+            if (pressTimer !== null) {
+                clearTimeout(pressTimer)
+                pressTimer = null
+            }
+        }
+        // 点击拦截
+        el.__longpressClick__ = (e) => {
+            if (isCall) {
+                e.preventDefault()
+                e.stopPropagation()
+            }
+            el.__longpressCancel__(e)
+        }
+        // 添加事件监听器
+        el.addEventListener('touchstart', el.__longpressStart__)
+        // 取消计时器
+        el.addEventListener('click', el.__longpressClick__)
+        el.addEventListener('touchmove', el.__longpressCancel__);
+        el.addEventListener('touchend', el.__longpressCancel__)
+        el.addEventListener('touchcancel', el.__longpressCancel__)
+    },
+    // 指令与元素解绑的时候，移除事件绑定
+    unbind(el) {
+        el.removeEventListener('touchstart', el.__longpressStart__)
+        el.removeEventListener('click', el.__longpressClick__)
+        el.removeEventListener('touchmove', el.__longpressCancel__)
+        el.removeEventListener('touchend', el.__longpressCancel__)
+        el.removeEventListener('touchcancel', el.__longpressCancel__)
+        delete el.__longpressStart__;
+        delete el.__longpressClick__;
+        delete el.__longpressCancel__;
+    }
+}
+
+export default longpress
diff --git a/resources/assets/js/directives/touchmouse.js b/resources/assets/js/directives/touchmouse.js
index 541f02fc7..d0928ef63 100755
--- a/resources/assets/js/directives/touchmouse.js
+++ b/resources/assets/js/directives/touchmouse.js
@@ -18,17 +18,29 @@ export default {
                 binding.value("up");
             }
         };
-        el.addEventListener(isSupportTouch ? 'touchstart' : 'mousedown', el.__touchMouseDown__);
-        document.addEventListener(isSupportTouch ? 'touchmove' : 'mousemove', el.__touchMouseMove__);
-        document.addEventListener(isSupportTouch ? 'touchend' : 'mouseup', el.__touchMouseUp__);
+        if (isSupportTouch) {
+            el.addEventListener('touchstart', el.__touchMouseDown__);
+            el.addEventListener('touchmove', el.__touchMouseMove__);
+            el.addEventListener('touchend', el.__touchMouseUp__);
+        } else {
+            el.addEventListener('mousedown', el.__touchMouseDown__);
+            document.addEventListener('mousemove', el.__touchMouseMove__);
+            document.addEventListener('mouseup', el.__touchMouseUp__);
+        }
     },
     update () {
 
     },
     unbind (el) {
-        el.removeEventListener(isSupportTouch ? 'touchstart' : 'mousedown', el.__touchMouseDown__);
-        document.removeEventListener(isSupportTouch ? 'touchmove' : 'mousemove', el.__touchMouseMove__);
-        document.removeEventListener(isSupportTouch ? 'touchend' : 'mouseup', el.__touchMouseUp__);
+        if (isSupportTouch) {
+            el.removeEventListener('touchstart', el.__touchMouseDown__);
+            el.removeEventListener('touchmove', el.__touchMouseMove__);
+            el.removeEventListener('touchend', el.__touchMouseUp__);
+        } else {
+            el.removeEventListener('mousedown', el.__touchMouseDown__);
+            document.removeEventListener('mousemove', el.__touchMouseMove__);
+            document.removeEventListener('mouseup', el.__touchMouseUp__);
+        }
         delete el.__touchMouseDown__;
         delete el.__touchMouseMove__;
         delete el.__touchMouseUp__;
diff --git a/resources/assets/js/functions/common.js b/resources/assets/js/functions/common.js
index 166133554..abe6c5524 100755
--- a/resources/assets/js/functions/common.js
+++ b/resources/assets/js/functions/common.js
@@ -1077,6 +1077,17 @@
                 return {width: parseInt(tempWidth), height: parseInt(tempHeight)};
             }
             return {width, height};
+        },
+
+        /**
+         * 获取元素属性
+         * @param el
+         * @param attrName
+         * @param def
+         * @returns {Property<any>|string|string}
+         */
+        getAttr(el, attrName, def = "") {
+            return el ? el.getAttribute(attrName) : def;
         }
     });
 
diff --git a/resources/assets/js/pages/manage.vue b/resources/assets/js/pages/manage.vue
index c9bc8f1e4..ccab508fe 100644
--- a/resources/assets/js/pages/manage.vue
+++ b/resources/assets/js/pages/manage.vue
@@ -135,7 +135,7 @@
                     </template>
                 </DropdownMenu>
             </Dropdown>
-            <ul :class="overlayClass" @scroll="handleClickTopOperateOutside">
+            <ul :class="listClassName" @scroll="operateVisible = false">
                 <li @click="toggleRoute('dashboard')" :class="classNameRoute('dashboard')">
                     <i class="taskfont">&#xe6fb;</i>
                     <div class="menu-title">{{$L('仪表盘')}}</div>
@@ -156,14 +156,15 @@
                     <i class="taskfont">&#xe6f3;</i>
                     <div class="menu-title">{{$L('文件')}}</div>
                 </li>
-                <li ref="projectWrapper" class="menu-project">
-                    <ul :class="overlayClass" @scroll="handleClickTopOperateOutside">
+                <li class="menu-project">
+                    <ul ref="projectWrapper" :class="listClassName" @scroll="operateVisible = false">
                         <li
                             v-for="(item, key) in projectLists"
+                            :ref="`project_${item.id}`"
                             :key="key"
                             :class="classNameProject(item)"
                             @click="toggleRoute('project', {projectId: item.id})"
-                            @contextmenu.prevent.stop="handleRightClick($event, item)">
+                            @contextmenu.prevent.stop="handleContextmenu($event, item)">
                             <div class="project-h1">
                                 <em @click.stop="toggleOpenMenu(item.id)"></em>
                                 <div class="title">{{item.name}}</div>
@@ -183,24 +184,24 @@
                                 </p>
                             </div>
                         </li>
+                        <li v-if="loadIng > 0" class="loading"><Loading/></li>
                     </ul>
-                    <Loading v-if="loadIng > 0"/>
-                    <div class="top-operate" :style="topOperateStyles">
-                        <Dropdown
-                            trigger="custom"
-                            :visible="topOperateVisible"
-                            transfer-class-name="page-file-dropdown-menu"
-                            @on-clickoutside="handleClickTopOperateOutside"
-                            transfer>
-                            <DropdownMenu slot="list">
-                                <DropdownItem @click.native="handleTopClick">
-                                    {{ $L(topOperateItem.top_at ? '取消置顶' : '置顶该项目') }}
-                                </DropdownItem>
-                            </DropdownMenu>
-                        </Dropdown>
-                    </div>
                 </li>
             </ul>
+            <div class="operate-position" :style="operateStyles">
+                <Dropdown
+                    trigger="custom"
+                    :visible="operateVisible"
+                    @on-clickoutside="operateVisible = false"
+                    transfer>
+                    <div :style="{height: operateStyles.height}"></div>
+                    <DropdownMenu slot="list">
+                        <DropdownItem @click.native="handleTopClick">
+                            {{ $L(operateItem.top_at ? '取消置顶' : '置顶该项目') }}
+                        </DropdownItem>
+                    </DropdownMenu>
+                </Dropdown>
+            </div>
             <div
                 v-if="projectTotal > 20"
                 class="manage-project-search">
@@ -226,7 +227,7 @@
 
         <div class="manage-box-main">
             <keep-alive>
-                <router-view class="manage-box-view overlay"></router-view>
+                <router-view class="manage-box-view"></router-view>
             </keep-alive>
         </div>
 
@@ -437,9 +438,9 @@ export default {
             reportTabs: "my",
             reportUnreadNumber: 0,
 
-            topOperateStyles: {},
-            topOperateVisible: false,
-            topOperateItem: {},
+            operateStyles: {},
+            operateVisible: false,
+            operateItem: {},
         }
     },
 
@@ -620,10 +621,10 @@ export default {
             return data;
         },
 
-        overlayClass() {
+        listClassName() {
             return {
-                'overlay-y': true,
-                'overlay-none': this.topOperateVisible === true,
+                'scrollbar-overlay': true,
+                'scrollbar-hidden': this.operateVisible === true,
             }
         },
 
@@ -805,7 +806,7 @@ export default {
             return {
                 "active": this.routeName === 'manage-project' && this.$route.params.projectId == item.id,
                 "open-menu": this.openMenu[item.id] === true,
-                "operate": item.id == this.topOperateItem.id && this.topOperateVisible
+                "operate": item.id == this.operateItem.id && this.operateVisible
             };
         },
 
@@ -963,34 +964,31 @@ export default {
             }, typeof timeout === "number" ? timeout : 1000)
         },
 
-        handleRightClick(event, item) {
-            this.handleClickTopOperateOutside();
-            this.topOperateItem = item;
+        handleContextmenu(event, item) {
+            this.operateVisible = false;
+            this.operateItem = $A.isJson(item) ? item : {};
             this.$nextTick(() => {
-                const projectWrap = this.$refs.projectWrapper;
-                const projectBounding = projectWrap.getBoundingClientRect();
-                this.topOperateStyles = {
-                    left: `${event.clientX - projectBounding.left}px`,
-                    top: `${event.clientY - projectBounding.top}px`
-                };
-                this.topOperateVisible = true;
+                const dialogRect = this.$refs[`project_${item.id}`][0].getBoundingClientRect();
+                const wrapRect = this.$refs.projectWrapper.getBoundingClientRect();
+                this.operateStyles = {
+                    left: `${event.clientX - wrapRect.left}px`,
+                    top: `${dialogRect.top}px`,
+                    height: dialogRect.height + 'px',
+                }
+                this.operateVisible = true;
             })
         },
 
-        handleClickTopOperateOutside() {
-            this.topOperateVisible = false;
-        },
-
         handleTopClick() {
             this.$store.dispatch("call", {
                 url: 'project/top',
                 data: {
-                    project_id: this.topOperateItem.id,
+                    project_id: this.operateItem.id,
                 },
             }).then(({data}) => {
                 this.$store.dispatch("saveProject", data);
                 this.$nextTick(() => {
-                    let active = this.$refs.projectWrapper.querySelector(".active")
+                    const active = this.$refs.projectWrapper.querySelector(".active")
                     if (active) {
                         $A.scrollToView(active, {
                             behavior: 'instant',
diff --git a/resources/assets/js/pages/manage/components/ChatInput/emoji.vue b/resources/assets/js/pages/manage/components/ChatInput/emoji.vue
index 4a0bbb050..46eaf8e72 100644
--- a/resources/assets/js/pages/manage/components/ChatInput/emoji.vue
+++ b/resources/assets/js/pages/manage/components/ChatInput/emoji.vue
@@ -1,6 +1,6 @@
 <template>
     <div class="chat-emoji-wrapper">
-        <ul class="chat-emoji-box overlay-y" :class="[type, 'no-dark-content']">
+        <ul class="chat-emoji-box scrollbar-overlay" :class="[type, 'no-dark-content']">
             <li v-for="item in list" @click="onSelect(item)">
                 <img v-if="item.type === 'emoticon'" :src="item.src" :title="item.name" :alt="item.name"/>
                 <span v-else v-html="item.html" :title="item.name"></span>
diff --git a/resources/assets/js/pages/manage/components/DialogView.vue b/resources/assets/js/pages/manage/components/DialogView.vue
index e757a58b5..65905c139 100644
--- a/resources/assets/js/pages/manage/components/DialogView.vue
+++ b/resources/assets/js/pages/manage/components/DialogView.vue
@@ -65,13 +65,13 @@
                         popper-class="dialog-wrapper-read-poptip"
                         placement="left-end">
                         <div class="read-poptip-content">
-                            <ul class="read overlay-y">
+                            <ul class="read scrollbar-overlay">
                                 <li class="read-title"><em>{{ readList.length }}</em>{{ $L('已读') }}</li>
                                 <li v-for="item in readList">
                                     <UserAvatar :userid="item.userid" :size="26" showName/>
                                 </li>
                             </ul>
-                            <ul class="unread overlay-y">
+                            <ul class="unread scrollbar-overlay">
                                 <li class="read-title"><em>{{ unreadList.length }}</em>{{ $L('未读') }}</li>
                                 <li v-for="item in unreadList">
                                     <UserAvatar :userid="item.userid" :size="26" showName/>
diff --git a/resources/assets/js/pages/manage/components/DialogWrapper.vue b/resources/assets/js/pages/manage/components/DialogWrapper.vue
index b5dfd6417..c1d7ac098 100644
--- a/resources/assets/js/pages/manage/components/DialogWrapper.vue
+++ b/resources/assets/js/pages/manage/components/DialogWrapper.vue
@@ -65,10 +65,7 @@
         </slot>
         <DynamicScroller
             ref="scroller"
-            class="dialog-scroller"
-            :class="{
-                'overlay-y': !touchBackInProgress
-            }"
+            class="dialog-scroller scrollbar-overlay"
             :disabled="touchBackInProgress"
             :items="allMsgs"
             :min-item-size="58"
diff --git a/resources/assets/js/pages/manage/components/ProjectPanel.vue b/resources/assets/js/pages/manage/components/ProjectPanel.vue
index dbdb204fd..27883d1ce 100644
--- a/resources/assets/js/pages/manage/components/ProjectPanel.vue
+++ b/resources/assets/js/pages/manage/components/ProjectPanel.vue
@@ -92,7 +92,7 @@
                 </div>
             </div>
         </div>
-        <div v-if="tabTypeActive === 'column'" class="project-column" :style="columnStyle">
+        <div v-if="tabTypeActive === 'column'" class="project-column">
             <Draggable
                 :list="columnList"
                 :animation="150"
@@ -138,7 +138,7 @@
                             <Icon class="last" type="md-add" @click="addTopShow(column.id, true)" />
                         </div>
                     </div>
-                    <div :ref="'column_' + column.id" class="column-task overlay-y">
+                    <div :ref="'column_' + column.id" class="column-task scrollbar-overlay">
                         <div v-if="!!columnTopShow[column.id]" class="task-item additem">
                             <TaskAddSimple
                                 :column-id="column.id"
@@ -230,7 +230,7 @@
                 </li>
             </Draggable>
         </div>
-        <div v-else-if="tabTypeActive === 'table'" class="project-table overlay-y" :style="columnStyle">
+        <div v-else-if="tabTypeActive === 'table'" class="project-table scrollbar-overlay">
             <div class="project-table-head">
                 <Row class="task-row">
                     <Col span="12"># {{$L('任务名称')}}</Col>
@@ -538,7 +538,6 @@ export default {
     computed: {
         ...mapState([
             'windowWidth',
-            'touchBackInProgress',
 
             'userId',
             'cacheDialogs',
@@ -575,14 +574,6 @@ export default {
             return style
         },
 
-        columnStyle() {
-            const style = {}
-            if (this.touchBackInProgress) {
-                style.overflow = 'hidden !important';
-            }
-            return style
-        },
-
         userWaitRemove() {
             const {userids, useridbak} = this.userData;
             if (!userids) {
diff --git a/resources/assets/js/pages/manage/components/ProjectWorkflow.vue b/resources/assets/js/pages/manage/components/ProjectWorkflow.vue
index b0bedefb1..b0991b3d5 100644
--- a/resources/assets/js/pages/manage/components/ProjectWorkflow.vue
+++ b/resources/assets/js/pages/manage/components/ProjectWorkflow.vue
@@ -27,7 +27,7 @@
                         <div class="taskflow-config-table">
                             <div class="taskflow-config-table-left-container">
                                 <div class="taskflow-config-table-column-header left-header">{{$L('配置项')}}</div>
-                                <div :ref="`overlay_${data.id}`" class="taskflow-config-table-column-body overlay-y">
+                                <div :ref="`overlay_${data.id}`" class="taskflow-config-table-column-body scrollbar-overlay">
                                     <div class="taskflow-config-table-block">
                                         <div class="taskflow-config-table-block-title">{{$L('设置状态为')}}</div>
                                         <div class="taskflow-config-table-block-item">
@@ -113,7 +113,7 @@
                                                 </EDropdown>
                                             </div>
                                         </div>
-                                        <div :ref="`overlay_${data.id}`" class="taskflow-config-table-column-body overlay-y">
+                                        <div :ref="`overlay_${data.id}`" class="taskflow-config-table-column-body scrollbar-overlay">
                                             <div class="taskflow-config-table-block">
                                                 <div class="taskflow-config-table-block-title"></div>
                                                 <RadioGroup v-model="item.status">
diff --git a/resources/assets/js/pages/manage/components/TaskDetail.vue b/resources/assets/js/pages/manage/components/TaskDetail.vue
index a385c4735..fa74d1f38 100644
--- a/resources/assets/js/pages/manage/components/TaskDetail.vue
+++ b/resources/assets/js/pages/manage/components/TaskDetail.vue
@@ -135,7 +135,7 @@
                     </div>
                 </div>
             </div>
-            <div class="scroller overlay-y">
+            <div class="scroller scrollbar-overlay">
                 <div class="title">
                     <Input
                         v-model="taskDetail.name"
diff --git a/resources/assets/js/pages/manage/dashboard.vue b/resources/assets/js/pages/manage/dashboard.vue
index 98d26c75f..e38e3b599 100644
--- a/resources/assets/js/pages/manage/dashboard.vue
+++ b/resources/assets/js/pages/manage/dashboard.vue
@@ -32,7 +32,7 @@
                     </div>
                 </li>
             </ul>
-            <div class="dashboard-list overlay-y">
+            <div class="dashboard-list scrollbar-overlay">
                 <template
                     v-for="column in columns"
                     v-if="column.list.length > 0">
diff --git a/resources/assets/js/pages/manage/messenger.vue b/resources/assets/js/pages/manage/messenger.vue
index 1df6211a7..cf21421d8 100644
--- a/resources/assets/js/pages/manage/messenger.vue
+++ b/resources/assets/js/pages/manage/messenger.vue
@@ -27,7 +27,7 @@
                 <ScrollerY
                     ref="list"
                     class="messenger-list"
-                    :class="overlayClass"
+                    :class="listClassName"
                     @on-scroll="listScroll"
                     static>
                     <ul
@@ -45,11 +45,13 @@
                             :class="{
                                 top: dialog.top_at,
                                 active: dialog.id == dialogId,
-                                operate: dialog.id == topOperateItem.id && topOperateVisible,
+                                operate: dialog.id == operateItem.id && operateVisible,
                                 completed: $A.dialogCompleted(dialog)
                             }"
+                            :data-id="dialog.id"
                             @click="openDialog(dialog.id)"
-                            @contextmenu.prevent.stop="handleRightClick($event, dialog)">
+                            v-longpress="handleLongpress"
+                            @contextmenu.prevent.stop="handleContextmenu($event, dialog)">
                             <template v-if="dialog.type=='group'">
                                 <i v-if="dialog.group_type=='project'" class="taskfont icon-avatar project">&#xe6f9;</i>
                                 <i v-else-if="dialog.group_type=='task'" class="taskfont icon-avatar task">&#xe6f4;</i>
@@ -99,21 +101,22 @@
                             <li class="loaded">{{$L('共' + contactsFilter.length + '位联系人')}}</li>
                         </template>
                     </ul>
-                    <div class="top-operate" :style="topOperateStyles">
+                    <div class="operate-position" :style="operateStyles">
                         <Dropdown
                             trigger="custom"
-                            :visible="topOperateVisible"
-                            transfer-class-name="page-file-dropdown-menu"
-                            @on-clickoutside="handleClickTopOperateOutside"
-                            transfer>
+                            :transfer="true"
+                            :placement="$isDesktop ? 'bottom' : 'top'"
+                            :visible="operateVisible"
+                            @on-clickoutside="operateVisible = false">
+                            <div :style="{userSelect:operateVisible ? 'none' : 'auto', height: operateStyles.height}"></div>
                             <DropdownMenu slot="list">
                                 <DropdownItem @click.native="handleTopClick">
-                                    {{ $L(topOperateItem.top_at ? '取消置顶' : '置顶该聊天') }}
+                                    {{ $L(operateItem.top_at ? '取消置顶' : '置顶该聊天') }}
                                 </DropdownItem>
-                                <DropdownItem @click.native="updateRead('read')" v-if="$A.getDialogUnread(topOperateItem) > 0">
+                                <DropdownItem @click.native="handleReadClick('read')" v-if="$A.getDialogUnread(operateItem) > 0">
                                     {{ $L('标记已读') }}
                                 </DropdownItem>
-                                <DropdownItem @click.native="updateRead('unread')" v-else>
+                                <DropdownItem @click.native="handleReadClick('unread')" v-else>
                                     {{ $L('标记未读') }}
                                 </DropdownItem>
                             </DropdownMenu>
@@ -149,9 +152,11 @@
 import {mapState} from "vuex";
 import DialogWrapper from "./components/DialogWrapper";
 import ScrollerY from "../../components/ScrollerY";
+import longpress from "../../directives/longpress";
 
 export default {
     components: {ScrollerY, DialogWrapper},
+    directives: {longpress},
     data() {
         return {
             tabActive: 'dialog',
@@ -171,9 +176,9 @@ export default {
             contactsCurrentPage: 1,
             contactsHasMorePages: false,
 
-            topOperateStyles: {},
-            topOperateVisible: false,
-            topOperateItem: {},
+            operateItem: {},
+            operateStyles: {},
+            operateVisible: false,
         }
     },
 
@@ -300,10 +305,10 @@ export default {
             }
         },
 
-        overlayClass() {
+        listClassName() {
             return {
-                'overlay-y': true,
-                'overlay-none': this.topOperateVisible === true,
+                'scrollbar-overlay': true,
+                'scrollbar-hidden': this.operateVisible === true,
             }
         }
     },
@@ -371,7 +376,7 @@ export default {
                     }
                     break;
             }
-            this.topOperateVisible = false;
+            this.operateVisible = false;
         },
 
         onActive(type) {
@@ -389,6 +394,9 @@ export default {
         },
 
         openDialog(dialogId) {
+            if (this.operateVisible) {
+                return
+            }
             if (dialogId > 0) {
                 this.goForward({name: 'manage-messenger', params: {dialogId}});
             } else {
@@ -507,18 +515,18 @@ export default {
         scrollIntoActive() {
             this.$nextTick(() => {
                 if (this.$isDesktop && this.$refs.list) {
-                    let active = this.$refs.list.querySelector(".active")
+                    const active = this.$refs.list.querySelector(".active")
                     if (active) {
                         $A.scrollToView(active, {
                             behavior: 'instant',
                             scrollMode: 'if-needed',
                         });
                     } else {
-                        let dialog = this.cacheDialogs.find(({id}) => id == this.dialogId)
+                        const dialog = this.cacheDialogs.find(({id}) => id == this.dialogId)
                         if (dialog && this.dialogActive) {
                             this.dialogActive = '';
                             this.$nextTick(() => {
-                                let active = this.$refs.list.querySelector(".active")
+                                const active = this.$refs.list.querySelector(".active")
                                 if (active) {
                                     $A.scrollToView(active, {
                                         behavior: 'instant',
@@ -532,29 +540,44 @@ export default {
             })
         },
 
-        handleRightClick(event, item) {
-            this.handleClickTopOperateOutside();
-            this.topOperateItem = $A.isJson(item) ? item : {};
-            this.$nextTick(() => {
-                const dialogWrap = this.$refs.dialogWrapper;
-                const dialogBounding = dialogWrap.getBoundingClientRect();
-                this.topOperateStyles = {
-                    left: `${event.clientX - dialogBounding.left}px`,
-                    top: `${event.clientY - dialogBounding.top + 100 - this.$refs.list.scrollInfo().scrollY}px`
-                };
-                this.topOperateVisible = true;
-            })
+        handleLongpress(touchEvent, el) {
+            if (this.$isDesktop) {
+                return
+            }
+            const dialogId = $A.getAttr(el, 'data-id')
+            const dialogItem = this.dialogList.find(item => item.id == dialogId)
+            if (dialogItem) {
+                this.handleTopOperateShow(touchEvent.touches[0], dialogItem)
+            }
         },
 
-        handleClickTopOperateOutside() {
-            this.topOperateVisible = false;
+        handleContextmenu(event, dialog) {
+            if (!this.$isDesktop) {
+                return
+            }
+            this.handleTopOperateShow(event, dialog);
+        },
+
+        handleTopOperateShow(event, dialog) {
+            this.operateVisible = false;
+            this.operateItem = $A.isJson(dialog) ? dialog : {};
+            this.$nextTick(() => {
+                const dialogRect = this.$refs[`dialog_${dialog.id}`][0].getBoundingClientRect();
+                const wrapRect = this.$refs.dialogWrapper.getBoundingClientRect();
+                this.operateStyles = {
+                    left: `${event.clientX - wrapRect.left}px`,
+                    top: `${dialogRect.top}px`,
+                    height: dialogRect.height + 'px',
+                }
+                this.operateVisible = true;
+            })
         },
 
         handleTopClick() {
             this.$store.dispatch("call", {
                 url: 'dialog/top',
                 data: {
-                    dialog_id: this.topOperateItem.id,
+                    dialog_id: this.operateItem.id,
                 },
             }).then(({data}) => {
                 this.$store.dispatch("saveDialog", data);
@@ -564,11 +587,11 @@ export default {
             });
         },
 
-        updateRead(type) {
+        handleReadClick(type) {
             this.$store.dispatch("call", {
                 url: 'dialog/msg/mark',
                 data: {
-                    dialog_id: this.topOperateItem.id,
+                    dialog_id: this.operateItem.id,
                     type: type
                 },
             }).then(({data}) => {
diff --git a/resources/assets/js/pages/manage/setting/index.vue b/resources/assets/js/pages/manage/setting/index.vue
index 3f5e00048..351450d64 100644
--- a/resources/assets/js/pages/manage/setting/index.vue
+++ b/resources/assets/js/pages/manage/setting/index.vue
@@ -33,7 +33,9 @@
             </div>
             <div class="setting-content">
                 <div class="setting-content-title">{{$L(titleNameRoute)}}</div>
-                <div class="setting-content-view"><router-view class="setting-router-view"></router-view></div>
+                <div class="setting-content-view">
+                    <router-view class="setting-router-view"></router-view>
+                </div>
             </div>
         </div>
     </div>
diff --git a/resources/assets/sass/app.scss b/resources/assets/sass/app.scss
index d338e31c5..81680608e 100644
--- a/resources/assets/sass/app.scss
+++ b/resources/assets/sass/app.scss
@@ -9,4 +9,3 @@
 @import "pages/_";
 
 @import "dark";
-
diff --git a/resources/assets/sass/components/_.scss b/resources/assets/sass/components/_.scss
index 04a41cf6b..a7a5bf069 100644
--- a/resources/assets/sass/components/_.scss
+++ b/resources/assets/sass/components/_.scss
@@ -1,6 +1,7 @@
 @import "auto-tip";
 @import "circle";
 @import "drawer-overlay";
+@import "gantt-view";
 @import "img-update";
 @import "loading";
 @import "mobile";
diff --git a/resources/assets/sass/components/gantt-view.scss b/resources/assets/sass/components/gantt-view.scss
new file mode 100644
index 000000000..214a8a93e
--- /dev/null
+++ b/resources/assets/sass/components/gantt-view.scss
@@ -0,0 +1,290 @@
+.common-gantt {
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    display: flex;
+    flex-direction: row;
+    align-items: self-start;
+    color: #747a81;
+
+    * {
+        box-sizing: border-box;
+    }
+
+    .gantt-left {
+        flex-grow: 0;
+        flex-shrink: 0;
+        height: 100%;
+        background-color: #ffffff;
+        position: relative;
+        display: flex;
+        flex-direction: column;
+
+        &:after {
+            content: "";
+            position: absolute;
+            top: 0;
+            right: 0;
+            bottom: 0;
+            width: 1px;
+            background-color: rgba(237, 241, 242, 0.75);
+        }
+
+        .gantt-title {
+            height: 76px;
+            flex-grow: 0;
+            flex-shrink: 0;
+            background-color: #F9FAFB;
+            padding-left: 12px;
+            overflow: hidden;
+
+            .gantt-title-text {
+                line-height: 100px;
+                max-width: 200px;
+                overflow: hidden;
+                text-overflow: ellipsis;
+                white-space: nowrap;
+                font-weight: 600;
+            }
+        }
+
+        .gantt-item {
+            transform: translateZ(0);
+            max-height: 100%;
+            overflow: auto;
+
+            &::-webkit-scrollbar {
+                display: none;
+            }
+
+            > li {
+                height: 40px;
+                border-bottom: 1px solid rgba(237, 241, 242, 0.75);
+                position: relative;
+                display: flex;
+                align-items: center;
+                padding-left: 12px;
+
+                &:hover {
+                    .item-icon {
+                        display: flex;
+                    }
+                }
+
+                .item-overdue {
+                    flex-grow: 0;
+                    flex-shrink: 0;
+                    color: #ffffff;
+                    margin-right: 4px;
+                    background-color: #ff0000;
+                    padding: 1px 3px;
+                    border-radius: 3px;
+                    font-size: 12px;
+                    line-height: 18px;
+                }
+
+                .item-title {
+                    flex: 1;
+                    padding-right: 12px;
+                    cursor: default;
+                    overflow: hidden;
+                    text-overflow: ellipsis;
+                    white-space: nowrap;
+
+                    &.complete {
+                        text-decoration: line-through;
+                    }
+
+                    &.overdue {
+                        font-weight: 600;
+                    }
+                }
+
+                .item-icon {
+                    display: none;
+                    align-items: center;
+                    justify-content: center;
+                    width: 32px;
+                    margin-right: 2px;
+                    font-size: 16px;
+                    color: #888888;
+                }
+            }
+        }
+    }
+
+    .gantt-right {
+        flex: 1;
+        height: 100%;
+        background-color: #ffffff;
+        position: relative;
+        overflow: hidden;
+
+        .gantt-chart {
+            position: absolute;
+            top: 0;
+            left: 0;
+            right: 0;
+            bottom: 0;
+            transform: translateZ(0);
+
+            .gantt-month {
+                display: flex;
+                align-items: center;
+                position: absolute;
+                top: 0;
+                left: 0;
+                right: 0;
+                z-index: 1;
+                height: 26px;
+                line-height: 20px;
+                font-size: 14px;
+                background-color: #F9FAFB;
+
+                > li {
+                    flex-grow: 0;
+                    flex-shrink: 0;
+                    height: 100%;
+                    position: relative;
+                    overflow: hidden;
+
+                    &:after {
+                        content: "";
+                        position: absolute;
+                        top: 0;
+                        right: 0;
+                        width: 1px;
+                        height: 100%;
+                        background-color: rgba(237, 241, 242, 0.75);
+                    }
+
+                    .month-format {
+                        overflow: hidden;
+                        white-space: nowrap;
+                        padding: 6px 6px 0;
+                    }
+                }
+            }
+
+            .gantt-date {
+                display: flex;
+                align-items: center;
+                position: absolute;
+                top: 26px;
+                left: 0;
+                right: 0;
+                bottom: 0;
+                z-index: 2;
+                cursor: move;
+
+                &:before {
+                    content: "";
+                    position: absolute;
+                    top: 0;
+                    left: 0;
+                    right: 0;
+                    height: 50px;
+                    background-color: #F9FAFB;
+                }
+
+                > li {
+                    flex-grow: 0;
+                    flex-shrink: 0;
+                    height: 100%;
+                    position: relative;
+                    overflow: hidden;
+
+                    &:after {
+                        content: "";
+                        position: absolute;
+                        top: 0;
+                        right: 0;
+                        width: 1px;
+                        height: 100%;
+                        background-color: rgba(237, 241, 242, 0.75);
+                    }
+
+                    .date-format {
+                        overflow: hidden;
+                        white-space: nowrap;
+                        display: flex;
+                        flex-direction: column;
+                        align-items: center;
+                        justify-content: center;
+                        height: 44px;
+
+                        .format-day {
+                            line-height: 28px;
+                            font-size: 18px;
+                        }
+
+                        .format-week {
+                            line-height: 16px;
+                            font-weight: 300;
+                            font-size: 13px;
+                        }
+                    }
+                }
+            }
+
+            .gantt-timeline {
+                position: absolute;
+                top: 76px;
+                left: 0;
+                right: 0;
+                bottom: 0;
+                z-index: 3;
+                overflow-x: hidden;
+                overflow-y: auto;
+
+                > li {
+                    cursor: default;
+                    height: 40px;
+                    border-bottom: 1px solid rgba(237, 241, 242, 0.75);
+                    position: relative;
+
+                    .timeline-item {
+                        position: absolute;
+                        top: 0;
+                        touch-action: none;
+                        pointer-events: auto;
+                        padding: 4px;
+                        margin-top: 4px;
+                        background: #e74c3c;
+                        border-radius: 18px;
+                        color: #fff;
+                        display: flex;
+                        align-items: center;
+                        will-change: contents;
+                        height: 32px;
+
+                        .timeline-title {
+                            touch-action: none;
+                            flex-grow: 1;
+                            overflow: hidden;
+                            text-overflow: ellipsis;
+                            white-space: nowrap;
+                            margin-left: 4px;
+                            margin-right: 10px;
+                        }
+
+                        .timeline-resizer {
+                            height: 22px;
+                            touch-action: none;
+                            width: 8px;
+                            background: rgba(255, 255, 255, 0.1);
+                            cursor: ew-resize;
+                            flex-shrink: 0;
+                            will-change: visibility;
+                            position: absolute;
+                            top: 5px;
+                            right: 5px;
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/resources/assets/sass/components/right-bottom.scss b/resources/assets/sass/components/right-bottom.scss
index 399d332ca..9ef902370 100644
--- a/resources/assets/sass/components/right-bottom.scss
+++ b/resources/assets/sass/components/right-bottom.scss
@@ -46,7 +46,6 @@
     .notification-body {
         max-height: 210px;
         overflow-x: hidden;
-        overflow-y: auto;
         margin-bottom: 16px;
         .markdown-preview {
             margin: -20px -12px;
diff --git a/resources/assets/sass/components/scroller-y.scss b/resources/assets/sass/components/scroller-y.scss
index 7f9f816d8..f170618c1 100755
--- a/resources/assets/sass/components/scroller-y.scss
+++ b/resources/assets/sass/components/scroller-y.scss
@@ -6,7 +6,7 @@
     bottom: 0;
     overflow-x: hidden;
     overflow-y: auto;
-    -webkit-overflow-scrolling: touch;
+    overflow-y: overlay;
     .app-scroller-bottom {
         height: 0;
         margin: 0;
diff --git a/resources/assets/sass/pages/common.scss b/resources/assets/sass/pages/common.scss
index edd178ede..ecc10177d 100755
--- a/resources/assets/sass/pages/common.scss
+++ b/resources/assets/sass/pages/common.scss
@@ -1,6 +1,17 @@
 body {
     overflow: hidden;
 
+    &.touch-back {
+        .dialog-wrapper .vue-recycle-scroller.direction-vertical:not(.page-mode),
+        .common-gantt .gantt-left .gantt-item,
+        .project-panel .project-column,
+        .project-panel .project-table,
+        .scrollbar-overlay,
+        .ivu-modal-wrap {
+            overflow: hidden;
+        }
+    }
+
     .form-tip {
         color: #999999;
         line-height: 22px;
diff --git a/resources/assets/sass/pages/components/dialog-wrapper.scss b/resources/assets/sass/pages/components/dialog-wrapper.scss
index fcf7c7c82..a2c07dd8d 100644
--- a/resources/assets/sass/pages/components/dialog-wrapper.scss
+++ b/resources/assets/sass/pages/components/dialog-wrapper.scss
@@ -9,6 +9,10 @@
     background-color: #ffffff;
     z-index: 1;
 
+    .vue-recycle-scroller.direction-vertical:not(.page-mode) {
+        overflow-y: overlay;
+    }
+
     .dialog-nav {
         display: flex;
         align-items: center;
@@ -823,7 +827,6 @@
         .unread {
             flex: 1;
             max-height: 300px;
-            overflow: auto;
 
             > li {
                 min-height: 26px;
diff --git a/resources/assets/sass/pages/components/project-panel.scss b/resources/assets/sass/pages/components/project-panel.scss
index 90383ad15..7b2a7e219 100644
--- a/resources/assets/sass/pages/components/project-panel.scss
+++ b/resources/assets/sass/pages/components/project-panel.scss
@@ -380,7 +380,6 @@
                     display: flex;
                     flex-direction: column;
                     overflow-x: hidden;
-                    overflow-y: auto;
                     .task-list {
                         > div:last-child {
                             margin-bottom: 16px;
@@ -614,7 +613,7 @@
     .project-table {
         height: 100%;
         margin-top: 18px;
-        overflow: auto;
+        overflow-x: auto;
         .task-row {
             background-color: #ffffff;
             border-bottom: 1px solid #F4F4F5;
@@ -1082,7 +1081,6 @@
             }
         }
         .project-table {
-            overflow-x: auto;
             .project-table-head,
             .project-table-body {
                 min-width: 768px;
diff --git a/resources/assets/sass/pages/components/task-detail.scss b/resources/assets/sass/pages/components/task-detail.scss
index 501f3b017..b3fde1550 100644
--- a/resources/assets/sass/pages/components/task-detail.scss
+++ b/resources/assets/sass/pages/components/task-detail.scss
@@ -152,7 +152,6 @@
             padding-left: 8px;
             padding-right: 36px;
             overflow-x: hidden;
-            overflow-y: auto;
             .title {
                 margin-top: 18px;
                 .ivu-input {
diff --git a/resources/assets/sass/pages/page-dashboard.scss b/resources/assets/sass/pages/page-dashboard.scss
index 7f915e1e6..aaf994c15 100644
--- a/resources/assets/sass/pages/page-dashboard.scss
+++ b/resources/assets/sass/pages/page-dashboard.scss
@@ -105,7 +105,6 @@
             width: 100%;
             margin-top: 48px;
             padding-bottom: 6%;
-            overflow: auto;
             .dashboard-ref {
                 height: 0;
             }
@@ -298,8 +297,8 @@
                 }
             }
             .dashboard-list {
-                overflow: visible !important;
                 padding-bottom: 2px;
+                overflow: visible;
                 .dashboard-ul {
                     margin-bottom: 36px;
                     user-select: none;
diff --git a/resources/assets/sass/pages/page-manage.scss b/resources/assets/sass/pages/page-manage.scss
index e76c7e768..b05d48afe 100644
--- a/resources/assets/sass/pages/page-manage.scss
+++ b/resources/assets/sass/pages/page-manage.scss
@@ -22,7 +22,7 @@
             margin-top: 16px;
             display: flex;
             flex-direction: column;
-            overflow: hidden !important;
+            overflow: hidden;
             > li {
                 flex-shrink: 0;
                 display: flex;
@@ -67,7 +67,6 @@
                     width: 100%;
                     > ul {
                         width: 100%;
-                        overflow: auto;
                         > li {
                             display: flex;
                             flex-direction: column;
@@ -174,23 +173,31 @@
                             &.operate {
                                 border-color: $primary-color;
                             }
+                            &.loading {
+                                display: flex;
+                                align-items: center;
+                                justify-content: center;
+                                padding: 6px;
+                                .common-loading {
+                                    margin: 6px;
+                                    width: 22px;
+                                    height: 22px;
+                                }
+                            }
                         }
                     }
-                    .common-loading {
-                        margin: 6px;
-                        width: 22px;
-                        height: 22px;
-                    }
-                    .top-operate {
-                        position: absolute;
-                        top: 0;
-                        right: 0;
-                        opacity: 0;
-                        display: flex;
-                    }
                 }
             }
         }
+        .operate-position {
+            position: absolute;
+            top: 0;
+            right: 0;
+            width: 1px;
+            opacity: 0;
+            visibility: hidden;
+            pointer-events: none;
+        }
         .manage-project-search {
             width: 80%;
             padding: 0 3px;
@@ -400,14 +407,14 @@
     .page-manage {
         .manage-box-menu {
             > ul {
-                overflow: auto !important;
-                &.overlay-y {
-                    overflow-y: overlay !important;
+                overflow: auto;
+                &.scrollbar-overlay {
+                    overflow-y: overlay;
                 }
                 > li {
                     &.menu-project {
                         > ul {
-                            overflow: visible !important;
+                            overflow: visible;
                         }
                     }
                 }
diff --git a/resources/assets/sass/pages/page-messenger.scss b/resources/assets/sass/pages/page-messenger.scss
index 052257f50..cffa2b348 100644
--- a/resources/assets/sass/pages/page-messenger.scss
+++ b/resources/assets/sass/pages/page-messenger.scss
@@ -89,7 +89,6 @@
                 height: 0;
                 width: 100%;
                 overflow-x: hidden;
-                overflow-y: auto;
                 > ul {
                     &.dialog {
                         > li {
@@ -336,12 +335,14 @@
                         }
                     }
                 }
-                .top-operate {
+                .operate-position {
                     position: absolute;
                     top: 0;
                     right: 0;
+                    width: 1px;
                     opacity: 0;
-                    display: flex;
+                    visibility: hidden;
+                    pointer-events: none;
                 }
             }
             .messenger-menu {
@@ -447,15 +448,23 @@
                     opacity: 0;
                 }
                 .messenger-list {
-                    flex: 1;
-                    height: 0;
-                    width: 100%;
-                    overflow-x: hidden;
-                    overflow-y: auto;
                     > ul {
                         user-select: none;
                         &.dialog {
                             > li {
+                                .user-avatar {
+                                    .common-avatar {
+                                        &:after {
+                                            content: "";
+                                            position: absolute;
+                                            top: 0;
+                                            left: 0;
+                                            right: 0;
+                                            bottom: 0;
+                                            z-index: 1;
+                                        }
+                                    }
+                                }
                                 .dialog-split {
                                     display: block;
                                     position: absolute;
diff --git a/resources/assets/sass/scrollbar.scss b/resources/assets/sass/scrollbar.scss
index dc52df8a2..952c390e2 100644
--- a/resources/assets/sass/scrollbar.scss
+++ b/resources/assets/sass/scrollbar.scss
@@ -1,5 +1,6 @@
-.overlay-y {
-    overflow-y: overlay !important;
+.scrollbar-overlay {
+    overflow-y: auto;
+    overflow-y: overlay;
 
     /* 滚动条美化 */
     &::-webkit-scrollbar {
@@ -38,11 +39,9 @@
         background: rgba(0, 0, 0, 0);
     }
 }
-.overlay-none {
+
+.scrollbar-hidden {
     &::-webkit-scrollbar {
         display: none;
     }
 }
-.overlay-hidden {
-    overflow: hidden !important;
-}