diff --git a/style.css b/style.css
index 165fe83..ad29f4c 100644
--- a/style.css
+++ b/style.css
@@ -1,15 +1,13 @@
-/* ==============================
-   共通
-============================== */
+/* 共通 */
 body {
   margin: 0;
   font-family: "Hiragino Sans", "Helvetica Neue", Arial, sans-serif;
-  user-select: none;
+}
+input, button {
+  box-sizing: border-box;
 }
 
-/* ==============================
-   index.html
-============================== */
+/* index */
 body.index-page {
   background: linear-gradient(135deg, #9be2ff, #c7f5d9);
   min-height: 100vh;
@@ -20,146 +18,103 @@
 }
 
 .index-container {
-  width: 95%;
-  max-width: 450px;
+  width: 90%;
+  max-width: 420px;
   padding: 25px;
   background: #ffffff;
-  border-radius: 18px;
+  border-radius: 16px;
   box-shadow: 0 12px 30px rgba(0,0,0,0.12);
-  text-align: center;
-  animation: fadeIn 0.6s ease-out;
-}
-
-.index-container h1 {
-  margin: 0 0 15px;
-  font-size: 26px;
-  font-weight: 700;
-  color: #333;
 }
 
 .index-container input[type="text"] {
   width: 100%;
   padding: 12px;
-  margin: 10px 0;
-  font-size: 17px;
+  margin-top: 8px;
+  border-radius: 10px;
   border: 2px solid #ddd;
-  border-radius: 10px;
+  font-size: 16px;
 }
 
-.index-container button {
-  width: 100%;
-  padding: 12px;
-  font-size: 18px;
-  border: none;
-  border-radius: 10px;
-  background: #4ba3ff;
-  color: white;
-  cursor: pointer;
-}
-
-/* ==============================
-   map4.html
-============================== */
+/* map4 */
 body.map-page {
   background: linear-gradient(135deg, #d7efff, #e8ffef);
-  min-height: 100vh;
-  box-sizing: border-box;
+  padding: 16px;
 }
 
-/* レイアウト */
-.map-layout {
-  max-width: 1200px;
-  margin: 0 auto;
-  display: flex;
-  flex-direction: column;
-  gap: 20px;
-}
-
-/* PC版 */
-@media (min-width: 900px) {
-  .map-layout {
-    flex-direction: row;
-    align-items: flex-start;
-  }
-  .map-area {
-    width: 70%;
-  }
-  .member-area {
-    width: 30%;
-  }
-}
-
-/* カード */
-.card {
-  background: #fff;
-  border-radius: 18px;
-  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
-}
-
-/* 地図用パディング（ここだけ適用） */
-.card-content {
-  padding: 18px;
-}
-
-/* 地図構造 */
-#map-wrapper {
-  padding: 0;
-  margin: 0;
-}
-
+/* ★ flexの外にある地図ブロック（これが重要） */
 #map {
   width: 100%;
   height: 480px;
-  display: block;
+  margin: 16px 0;
+  border-radius: 14px;
+  box-shadow: 0 4px 18px rgba(0,0,0,0.20);
+}
+
+/* カード共通 */
+.card {
+  background: white;
+  padding: 16px;
+  border-radius: 16px;
+  box-shadow: 0 4px 18px rgba(0,0,0,0.12);
+  margin-bottom: 16px;
+}
+
+/* メンバー */
+.member-area ul {
+  list-style: none;
+  padding: 0;
+}
+
+.member-area li {
+  background: #f9fbff;
+  padding: 12px;
+  margin-bottom: 10px;
+  border-left: 5px solid #4ba3ff;
   border-radius: 10px;
-  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  gap: 10px;
 }
 
-/* メンバー一覧 */
-.member-area h2 {
-  text-align: center;
-}
-
-/* メンバーアイコン */
+/* アイコン */
 .member-icon {
-  width: 28px;
-  height: 28px;
+  width: 26px;
+  height: 26px;
   border-radius: 50%;
-  background: linear-gradient(135deg, #6db9ff, #4a90e2);
-  position: relative;
+  background: #4ba3ff;
 }
 
 /* オンライン/オフライン */
 .online .member-icon::after {
   content: "";
   position: absolute;
-  right: -4px;
-  bottom: -4px;
-  width: 12px;
-  height: 12px;
+  right: -5px;
+  bottom: -5px;
+  width: 10px;
+  height: 10px;
+  background: #1ed760;
   border-radius: 50%;
-  background: #35cc62;
   border: 2px solid white;
 }
 
 .offline .member-icon::after {
   content: "";
   position: absolute;
-  right: -4px;
-  bottom: -4px;
-  width: 12px;
-  height: 12px;
+  right: -5px;
+  bottom: -5px;
+  width: 10px;
+  height: 10px;
+  background: #ff4d4d;
   border-radius: 50%;
-  background: #ff6b6b;
   border: 2px solid white;
 }
 
 /* fadeIn */
 .fadeIn {
-  animation: fadeIn 0.6s ease-out;
+  animation: fadeIn 0.5s ease-out;
 }
-
 @keyframes fadeIn {
-  from { opacity: 0; transform: translateY(15px); }
+  from { opacity: 0; transform: translateY(20px); }
   to { opacity: 1; transform: translateY(0); }
 }