diff --git a/services/plot.py b/services/plot.py
index 5e734b3..43985e7 100644
--- a/services/plot.py
+++ b/services/plot.py
@@ -27,9 +27,9 @@ def plot_line(
     has_free = free_values is not None and len(free_values) > 0
 
     if has_free:
-        fig, (ax1, ax2) = plt.subplots(2, 1, figsize=(8, 6), sharex=True)
+        fig, (ax1, ax2) = plt.subplots(2, 1, figsize=(16, 6), sharex=True)
     else:
-        fig, ax1 = plt.subplots(1, 1, figsize=(8, 4))
+        fig, ax1 = plt.subplots(1, 1, figsize=(16, 4))
         ax2 = None
 
     # ===== 普通额度 =====
@@ -42,7 +42,7 @@ def plot_line(
     ax1.grid(True)
 
     for i, (x, y) in enumerate(zip(times, normal_values)):
-        dy = 8 if i == 0 or y >= normal_values[i - 1] else -12
+        dy = 8 if i != 0 or y < normal_values[i - 1] else -16
 
         ax1.annotate(
             f"{y}",