body {
	background-color: #A7FC00;
}

main > section.bg_color1 {
	background-color:#E0F2F1;
}

main > section.bg_color2 {
	background-color:#F1F8E9;
}

/* youtube */
#channel_intro {
	position:relative;
	text-align:center;
	padding:60px;
}

#intro_video {
	position:relative;
	text-align:center;
}

.intro_video_elem {
	position:relative;
	width:1400px;
	margin:0px auto;
	padding:60px;
	box-sizing:border-box;
}

h2 {
	padding-bottom:20px;
}

#content_types {
  background: #e8f5e9; /* 은은한 연녹색 배경 */
  padding:60px;
}

.content_types_elem {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 20px;
  color: #004d40;
  font-family: 'Noto Sans KR', sans-serif;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 77, 64, 0.1);
  text-align: center;
  background-color:#F1F8E9;
}

#content_types > .content_types_elem > h2 {
  font-size: 2.6rem;
  margin-bottom: 40px;
  font-weight: 700;
  color: #00796b;
  letter-spacing: 1.2px;
}

.content_category {
  background: #ffffff;
  border-radius: 10px;
  padding: 25px 30px;
  margin-bottom: 30px;
  box-shadow: 0 2px 8px rgba(0, 77, 64, 0.08);
  text-align: left;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.content_category h3 {
  font-size: 1.8rem;
  color: #004d40;
  margin-bottom: 15px;
  font-weight: 600;
  border-left: 5px solid #00796b;
  padding-left: 12px;
}

.content_category ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.content_category ul li {
  margin: 8px 0;
  font-size: 1.2rem;
  line-height: 1.5;
  position: relative;
  padding-left: 25px;
  max-width: 400px;
}

.content_category ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: #00796b;
  font-weight: bold;
  font-size: 1.3rem;
  top: 50%;
  transform: translateY(-50%);
}

/* Behind the Scene Section Styles */
#behind_the_scene {
    padding: 80px 20px;
    font-family: 'Noto Sans KR', sans-serif;
    color: #333;
}

.behind_the_scene_elem {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

#behind_the_scene p {
    font-size: 1.2em;
    line-height: 1.8;
    color: #4a4a4a;
}

#behind_the_scene p .mark {
    color: #ff6f61;
    font-weight: 600;
    background: rgba(255, 111, 97, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

#channel_goal {
	position:relative;
	padding:60px;
	text-align:center;
}

.channel_goal_elem {
	width:1400px;
	margin:0px auto;
}

.channel_goal_list {
	display: flex;
	flex-direction: row;
}

.channel_goal_list_elem {
	padding:10px;
}

.channel_goal_list_elem_elem {
	background-color:#e0f2f1;
	color: #004d40;
	padding:10px;
	border-radius:10px;
	box-shadow: 5px 5px 5px 0px #555555;
}