diff --git a/src/shared/ui/TimeRangeFilter.jsx b/src/shared/ui/TimeRangeFilter.jsx
index ce19f9a..430a356 100644
--- a/src/shared/ui/TimeRangeFilter.jsx
+++ b/src/shared/ui/TimeRangeFilter.jsx
@@ -29,7 +29,14 @@ export function TimeRangeFilter({ className = "", disabled = false, label = "时
     const [error, setError] = useState("");
     const open = Boolean(anchorEl);
     const days = useMemo(() => calendarDays(viewDate), [viewDate]);
-    const selectedDate = dateForField(draft, activeField, viewDate);
+    // 结束时间尚未选择时沿用开始时间作为时分基准，避免自动切换到结束字段后，
+    // 时分下拉意外跳回当前月 1 日的 00:00。
+    const selectedDate = dateForField(
+        draft,
+        activeField,
+        activeField === "end" && draft.startMs ? new Date(draft.startMs) : viewDate,
+    );
+    const rangeDistance = formatRangeDistance(draft.startMs, draft.endMs, withTime);
     const hasRange = Boolean(range.startMs || range.endMs);
 
     useEffect(() => {
@@ -71,24 +78,33 @@ export function TimeRangeFilter({ className = "", disabled = false, label = "时
     };
     const activateField = (field) => {
         setActiveField(field);
-        setViewDate(dateForField(draft, field, viewDate));
+        setViewDate(
+            dateForField(draft, field, field === "end" && draft.startMs ? new Date(draft.startMs) : viewDate),
+        );
         setError("");
     };
     const changeMonth = (offset) => {
         setViewDate((current) => new Date(current.getFullYear(), current.getMonth() + offset, 1));
     };
     const changeDay = (day) => {
+        const editingField = activeField;
         setDraft((current) => {
-            const base = dateForField(current, activeField, viewDate);
+            const base = dateForField(current, editingField, viewDate);
             const timeParts = withTime
                 ? [base.getHours(), base.getMinutes(), 0, 0]
-                : activeField === "start"
+                : editingField === "start"
                   ? [0, 0, 0, 0]
                   : [23, 59, 59, 999];
             const nextDate = new Date(day.getFullYear(), day.getMonth(), day.getDate(), ...timeParts);
-            return setRangeField(current, activeField, nextDate.getTime());
+            return setRangeField(current, editingField, nextDate.getTime());
         });
         setViewDate(new Date(day.getFullYear(), day.getMonth(), 1));
+        setError("");
+        if (editingField === "start") {
+            // 日期区间遵循“先起点、后终点”的连续操作：开始日期落点后直接进入结束日期选择，
+            // 用户无需再回到顶部手动点击结束字段。
+            setActiveField("end");
+        }
     };
     const changeTime = (unit, nextValue) => {
         setDraft((current) => {
@@ -171,6 +187,17 @@ export function TimeRangeFilter({ className = "", disabled = false, label = "时
                             onClick={() => activateField("end")}
                         />
                     </div>
+                    <div className={styles.rangeOverview} aria-live="polite">
+                        <span className={styles.rangeEdge}>
+                            <span className={`${styles.rangeEdgeMarker} ${styles.rangeEdgeMarkerStart}`}>始</span>
+                            {formatDayPosition(draft.startMs) || "待选择"}
+                        </span>
+                        <span className={styles.rangeDistance}>{rangeDistance}</span>
+                        <span className={`${styles.rangeEdge} ${styles.rangeEdgeEnd}`}>
+                            {formatDayPosition(draft.endMs) || "待选择"}
+                            <span className={`${styles.rangeEdgeMarker} ${styles.rangeEdgeMarkerEnd}`}>末</span>
+                        </span>
+                    </div>
                     <div className={styles.calendarHeader}>
                         <IconButton aria-label="上个月" size="small" onClick={() => changeMonth(-1)}>
                             <ChevronLeftOutlined fontSize="small" />
@@ -180,7 +207,7 @@ export function TimeRangeFilter({ className = "", disabled = false, label = "时
                             <ChevronRightOutlined fontSize="small" />
                         </IconButton>
                     </div>
-                    <div className={styles.calendarGrid}>
+                    <div className={`${styles.calendarGrid} ${styles.rangeCalendarGrid}`}>
                         {weekLabels.map((weekday) => (
                             <span className={styles.weekday} key={weekday}>
                                 {weekday}
@@ -188,16 +215,24 @@ export function TimeRangeFilter({ className = "", disabled = false, label = "时
                         ))}
                         {days.map((day) => {
                             const isOutside = day.getMonth() !== viewDate.getMonth();
-                            const isSelected = sameDay(day, selectedDate) && Boolean(draft[`${activeField}Ms`]);
+                            const isRangeStart = sameDayMs(day, draft.startMs);
+                            const isRangeEnd = sameDayMs(day, draft.endMs);
+                            const isInRange = isDayInRange(day, draft.startMs, draft.endMs);
+                            const rangeEdge =
+                                isRangeStart && isRangeEnd ? "始末" : isRangeStart ? "始" : isRangeEnd ? "末" : "";
                             return (
                                 <button
                                     className={[
                                         styles.dayButton,
                                         isOutside ? styles.dayOutside : "",
-                                        isSelected ? styles.daySelected : "",
+                                        isInRange ? styles.dayInRange : "",
+                                        isRangeStart ? styles.dayRangeStart : "",
+                                        isRangeEnd ? styles.dayRangeEnd : "",
+                                        isRangeStart || isRangeEnd ? styles.daySelected : "",
                                     ]
                                         .filter(Boolean)
                                         .join(" ")}
+                                    data-range-edge={rangeEdge || undefined}
                                     key={`${day.getFullYear()}-${day.getMonth()}-${day.getDate()}`}
                                     type="button"
                                     onClick={() => changeDay(day)}
@@ -358,6 +393,69 @@ function formatDayPart(value) {
     return `${date.getFullYear()}/${pad2(date.getMonth() + 1)}/${pad2(date.getDate())}`;
 }
 
+function formatDayPosition(value) {
+    const ms = normalizeMs(value);
+    if (!ms) {
+        return "";
+    }
+    const date = new Date(ms);
+    return `${pad2(date.getMonth() + 1)}/${pad2(date.getDate())}`;
+}
+
+export function formatRangeDistance(startValue, endValue, withTime = true) {
+    const startMs = normalizeMs(startValue);
+    const endMs = normalizeMs(endValue);
+    if (!startMs || !endMs) {
+        return "选择完整区间";
+    }
+    if (endMs <= startMs) {
+        return withTime ? "结束需晚于开始" : "结束不能早于开始";
+    }
+
+    if (!withTime) {
+        const start = new Date(startMs);
+        const end = new Date(endMs);
+        // 使用 UTC 日期序号计算自然日间隔，避免跨夏令时日期出现 23/25 小时导致天数偏差。
+        const startDay = Date.UTC(start.getFullYear(), start.getMonth(), start.getDate());
+        const endDay = Date.UTC(end.getFullYear(), end.getMonth(), end.getDate());
+        const days = Math.round((endDay - startDay) / (24 * 60 * 60 * 1000));
+        return days === 0 ? "同一天" : `间隔 ${days} 天`;
+    }
+
+    const totalMinutes = Math.floor((endMs - startMs) / (60 * 1000));
+    if (totalMinutes < 1) {
+        return "间隔少于 1 分钟";
+    }
+    const days = Math.floor(totalMinutes / (24 * 60));
+    const hours = Math.floor((totalMinutes % (24 * 60)) / 60);
+    const minutes = totalMinutes % 60;
+    const parts = [
+        days ? `${days} 天` : "",
+        hours ? `${hours} 小时` : "",
+        minutes ? `${minutes} 分钟` : "",
+    ].filter(Boolean);
+    return `间隔 ${parts.join(" ")}`;
+}
+
+function sameDayMs(day, value) {
+    const ms = normalizeMs(value);
+    return Boolean(ms) && sameDay(day, new Date(ms));
+}
+
+function isDayInRange(day, startValue, endValue) {
+    const startMs = normalizeMs(startValue);
+    const endMs = normalizeMs(endValue);
+    if (!startMs || !endMs || endMs <= startMs) {
+        return false;
+    }
+    const dayValue = new Date(day.getFullYear(), day.getMonth(), day.getDate()).getTime();
+    const start = new Date(startMs);
+    const end = new Date(endMs);
+    const startDay = new Date(start.getFullYear(), start.getMonth(), start.getDate()).getTime();
+    const endDay = new Date(end.getFullYear(), end.getMonth(), end.getDate()).getTime();
+    return dayValue >= startDay && dayValue <= endDay;
+}
+
 function msToDatetimeText(value) {
     const ms = normalizeMs(value);
     if (!ms) {
diff --git a/src/shared/ui/TimeRangeFilter.module.css b/src/shared/ui/TimeRangeFilter.module.css
index d4bcfbd..7cc3c51 100644
--- a/src/shared/ui/TimeRangeFilter.module.css
+++ b/src/shared/ui/TimeRangeFilter.module.css
@@ -146,6 +146,73 @@
   white-space: nowrap;
 }
 
+.rangeOverview {
+  display: grid;
+  grid-template-columns: minmax(72px, auto) minmax(0, 1fr) minmax(72px, auto);
+  align-items: center;
+  gap: var(--space-2);
+  min-height: 24px;
+  color: var(--text-tertiary);
+  font-size: 12px;
+  line-height: 18px;
+}
+
+.rangeEdge {
+  display: inline-flex;
+  min-width: 0;
+  align-items: center;
+  gap: var(--space-1);
+  color: var(--text-secondary);
+  font-weight: 650;
+  white-space: nowrap;
+}
+
+.rangeEdgeEnd {
+  justify-content: flex-end;
+}
+
+.rangeEdgeMarker {
+  display: inline-flex;
+  width: 18px;
+  height: 18px;
+  align-items: center;
+  justify-content: center;
+  border-radius: 50%;
+  font-size: 10px;
+  font-weight: 760;
+}
+
+.rangeEdgeMarkerStart {
+  background: var(--primary);
+  color: var(--active-contrast);
+}
+
+.rangeEdgeMarkerEnd {
+  border: 1px solid var(--primary);
+  background: var(--bg-card);
+  color: var(--primary);
+}
+
+.rangeDistance {
+  position: relative;
+  overflow: hidden;
+  color: var(--primary);
+  font-weight: 700;
+  text-align: center;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.rangeDistance::before,
+.rangeDistance::after {
+  display: inline-block;
+  width: 18px;
+  height: 1px;
+  margin: 0 6px 3px;
+  background: var(--primary-border);
+  content: "";
+}
+
 .calendarHeader {
   display: grid;
   grid-template-columns: var(--control-height) 1fr var(--control-height);
@@ -166,6 +233,10 @@
   gap: var(--space-1);
 }
 
+.rangeCalendarGrid {
+  column-gap: 0;
+}
+
 .weekday {
   display: inline-flex;
   height: 24px;
@@ -174,6 +245,7 @@
 }
 
 .dayButton {
+  position: relative;
   display: inline-flex;
   min-width: 0;
   height: 34px;
@@ -192,6 +264,28 @@
     color var(--motion-fast) var(--ease-standard);
 }
 
+.dayInRange {
+  border-radius: 0;
+  background: var(--primary-surface);
+  color: var(--primary-strong);
+}
+
+.dayButton.dayInRange:hover {
+  background: var(--primary-surface-strong);
+}
+
+.dayRangeStart {
+  border-radius: var(--radius-control) 0 0 var(--radius-control);
+}
+
+.dayRangeEnd {
+  border-radius: 0 var(--radius-control) var(--radius-control) 0;
+}
+
+.dayRangeStart.dayRangeEnd {
+  border-radius: var(--radius-control);
+}
+
 .dayButton:hover {
   border-color: var(--primary-border);
   background: var(--primary-surface);
@@ -208,6 +302,18 @@
   font-weight: 760;
 }
 
+.daySelected::after {
+  position: absolute;
+  top: 1px;
+  right: 3px;
+  color: currentcolor;
+  content: attr(data-range-edge);
+  font-size: 8px;
+  font-weight: 760;
+  line-height: 10px;
+  opacity: 0.82;
+}
+
 .daySelected:hover {
   border-color: var(--primary-strong);
   background: var(--primary-strong);
diff --git a/src/shared/ui/TimeRangeFilter.test.jsx b/src/shared/ui/TimeRangeFilter.test.jsx
index 27eab40..ab3ae71 100644
--- a/src/shared/ui/TimeRangeFilter.test.jsx
+++ b/src/shared/ui/TimeRangeFilter.test.jsx
@@ -1,7 +1,13 @@
 import { render, screen } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
 import { describe, expect, test, vi } from "vitest";
-import { TimeRangeFilter, datetimeTextToMs, normalizeRange, timeRangeLabel } from "@/shared/ui/TimeRangeFilter.jsx";
+import {
+    TimeRangeFilter,
+    datetimeTextToMs,
+    formatRangeDistance,
+    normalizeRange,
+    timeRangeLabel,
+} from "@/shared/ui/TimeRangeFilter.jsx";
 
 describe("TimeRangeFilter helpers", () => {
     test("parses strict local date time text", () => {
@@ -26,6 +32,32 @@ describe("TimeRangeFilter helpers", () => {
         expect(timeRangeLabel("时间", {})).toBe("时间");
     });
 
+    test("formats the selected interval for timed and date-only ranges", () => {
+        const startMs = datetimeTextToMs("2026-05-13 10:00");
+        const endMs = datetimeTextToMs("2026-05-14 12:30");
+
+        expect(formatRangeDistance(startMs, endMs)).toBe("间隔 1 天 2 小时 30 分钟");
+        expect(formatRangeDistance(startMs, endMs, false)).toBe("间隔 1 天");
+        expect(formatRangeDistance(startMs, "")).toBe("选择完整区间");
+    });
+
+    test("switches to the end field after choosing a start date and marks the whole range", async () => {
+        const user = userEvent.setup();
+        const startMs = datetimeTextToMs("2026-05-13 10:00");
+        const endMs = datetimeTextToMs("2026-05-16 12:00");
+
+        render(<TimeRangeFilter label="活动时间" value={{ endMs, startMs }} onChange={vi.fn()} />);
+
+        await user.click(screen.getByRole("button", { name: /活动时间/ }));
+        await user.click(screen.getByRole("button", { name: "14" }));
+
+        expect(screen.getByRole("button", { name: /结束时间/ }).className).toContain("rangeFieldActive");
+        expect(screen.getByText("间隔 2 天 2 小时")).toBeInTheDocument();
+        expect(screen.getByRole("button", { name: "14" })).toHaveAttribute("data-range-edge", "始");
+        expect(screen.getByRole("button", { name: "15" }).className).toContain("dayInRange");
+        expect(screen.getByRole("button", { name: "16" })).toHaveAttribute("data-range-edge", "末");
+    });
+
     test("date-only mode hides time controls and returns day boundaries", async () => {
         const user = userEvent.setup();
         const onChange = vi.fn();