diff --git a/style.css b/style.css
index 8c65d98..e488fef 100644
--- a/style.css
+++ b/style.css
@@ -9,65 +9,12 @@
 }
 
 /* ==============================
- index.html
+ ヘッダー
 ============================== */
-body.index-page {
-  background: linear-gradient(135deg, #9be2ff, #c7f5d9);
-  min-height: 100vh;
-  display: flex;
-  justify-content: center;
-  align-items: center;
-  padding: 20px;
-}
-
-.index-container {
-  width: 92%;
-  max-width: 420px;
-  padding: 30px 20px;
-  background: white;
-  border-radius: 24px;
-  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
-  text-align: center;
-}
-
-/* ★ パスワード欄大きくする（追加） */
-.index-container input[type="password"] {
-  width: 100%;
-  padding: 15px;
-  margin-top: 14px;
-  border: 2px solid #ddd;
-  font-size: 18px;
-  border-radius: 12px;
-}
-
-.index-container input[type="text"] {
-  width: 100%;
-  padding: 15px;
-  margin-top: 14px;
-  border: 2px solid #ddd;
-  font-size: 18px;
-  border-radius: 12px;
-}
-
-.start-btn {
-  width: 100%;
-  padding: 12px;
-  margin-top: 20px;
-  font-size: 18px;
-  border-radius: 12px;
-  border: none;
-  color: white;
-  background: #4ba3ff;
-  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
-}
-
-/* ==============================
- map4.html（旧レイアウト）
-============================== */
-
 #header {
   display: flex;
   justify-content: space-between;
+  align-items: center;
   padding: 12px 16px;
   background: white;
   border-bottom: 2px solid #b4e3c2;
@@ -80,18 +27,24 @@
   border: none;
   border-radius: 10px;
   color: white;
+  cursor: pointer;
 }
 
+/* ==============================
+ マップ
+============================== */
 #map {
   width: 100%;
   height: 450px;
-  margin-top: 16px;
+  margin: 16px auto;
   border-radius: 14px;
   box-shadow: 0 4px 20px rgba(0,0,0,0.20);
   overflow: hidden;
 }
 
-/* 目的地・駅情報 */
+/* ==============================
+ 情報ボックス（目的地・最寄り駅）
+============================== */
 #targetInfo,
 #nearestBox {
   margin: 16px;
@@ -102,16 +55,23 @@
   font-size: 15px;
 }
 
+/* ==============================
+ セクションタイトル
+============================== */
 .sectionTitle {
   margin-left: 16px;
   margin-top: 25px;
+  margin-bottom: 10px;
   font-size: 18px;
 }
 
-/* メンバー一覧 */
+/* ==============================
+ メンバー一覧
+============================== */
 #memberList {
   list-style: none;
   padding: 0 16px;
+  margin-bottom: 20px;
 }
 
 #memberList li {
@@ -120,7 +80,7 @@
   margin: 10px 0;
   display: flex;
   justify-content: space-between;
-  gap: 12px;
+  align-items: center;
   border-left: 5px solid #4ba3ff;
   border-radius: 14px;
 }
@@ -147,20 +107,8 @@
 .online .member-icon::after { background: #22dd77; }
 .offline .member-icon::after { background: #ff5d5d; }
 
-/* ピン表示 */
-.custom-pin { transform-origin: center bottom; }
-.pin-wrapper { position: relative; transform: translate(-16px, -32px); }
-.pin-img { width: 32px; height: 32px; }
-.pin-label {
-  background: white;
-  padding: 2px 6px;
-  font-size: 12px;
-  border-radius: 6px;
-  border: 1px solid #ccc;
-}
-
 /* ==============================
- ★ チャット欄（旧レイアウト版）
+ チャット欄（旧レイアウト用）
 ============================== */
 #chatBox {
   background: white;
@@ -189,7 +137,7 @@
 #chatInput {
   flex: 1;
   padding: 12px;
-  font-size: 16px;
+  font-size: 15px;
   border: 2px solid #ccc;
   border-radius: 12px;
 }
@@ -204,3 +152,18 @@
   font-weight: bold;
   cursor: pointer;
 }
+
+/* ==============================
+ ピン（地図ラベル）
+============================== */
+.custom-pin { transform-origin: center bottom; }
+.pin-wrapper { position: relative; transform: translate(-16px, -32px); }
+.pin-img { width: 32px; height: 32px; }
+.pin-label {
+  background: white;
+  padding: 2px 6px;
+  border-radius: 6px;
+  border: 1px solid #ccc;
+  font-size: 12px;
+  white-space: nowrap;
+}