body {
  position: relative;
  background-image: url(../img/bg.jpg);
  background-size: cover;
  background-repeat: no-repeat;
  user-select: none;
}

/* page p1 */
.page.p1 {
  min-height: 100vh;
  height: auto;
  display: flex;
  align-items: center;
}
.page.p1 .content {
  width: 100%;
  display: grid;
  align-items: center;
  grid-template-columns: repeat(2, 1fr);
  gap: 92px;
}
.page.p1 .contents.c1 {
  max-width: 650px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 50px;
}
.page.p1 .contents.c1 .text_content .sub_text {
  width: fit-content;
  background-color: white;
  padding: 4px 40px 4px 40px;
  border-radius: 10px;
}
.page.p1 .contents.c1 .down_contents {
  display: flex;
  flex-direction: column;
  gap: 30px;
}
.page.p1 .contents.c1 .down_contents .down .buttons {
  display: flex;
  gap: 20px;
}
.page.p1 .contents.c1 .down_contents .down .buttons a {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 2px solid #f8b038;
  border-radius: 15px;
  padding: 21px 17px 21px 17px;
  background-color: white;
}
.page.p1 .contents.c1 .down_contents .down .buttons a:hover {
  opacity: 80%;
  transition: all 0.1s;
}
.page.p1 .contents.c1 .down_contents .down.c3 .buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}
.page.p1 .contents.c1 .down_contents .down .buttons a img {
  width: 28px;
}
.page.p1 .contents.c2 img {
  margin-top: 150px;
}

/* top_btn */
.top_btn {
  position: fixed;
  bottom: 50px;
  right: 50px;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 99999;
}
.top_bt {
  background-color: #fefefe;
  color: #f04e06;
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  font-size: 30px;
  padding-bottom: 2px;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.4);
  transition:
    opacity 0.3s,
    transform 0.3s;
}
.top_bt:hover {
  opacity: 0.8;
  transform: scale(1.1);
}