.bbody {
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  background: #f4f4f2;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 700px;
  margin: 40px auto;
  padding: 30px;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.section-title {
  text-align: center;
  color: #556b2f;
  font-size: 1.6em;
  margin-bottom: 20px;
}

.form-input, .form-textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
  border-radius: 10px;
  font-size: 16px;
  box-sizing: border-box;
}

.form-textarea {
  height: 100px;
  resize: none;
}

.form-button {
  background-color: #6b8e23;
  color: white;
  padding: 10px 20px;
  font-size: 16px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.form-button:hover {
  background-color: #556b2f;
}

#posts {
  margin-top: 20px;
  border-top: 1px solid #ddd;
  padding-top: 20px;
}

.post {
  border-bottom: 1px solid #eee;
  padding: 10px 0;
}

.post-id {
  font-weight: bold;
  color: #333;
}

.post-date {
  font-size: 0.85em;
  color: #666;
}