/* --- 基礎共用設定 --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
.frame {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* --- navbar area --- */
.navblock {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid #e8e8e8;
  display: flex;
  justify-content: center;
}
.navbar {
  width: 1200px;
  display: flex;
  padding: 10px 0;
  justify-content: space-between;
}
.nav_titleblock {
  display: flex;
  justify-content: center;
  align-items: center;
  color: #448899;
  font-weight: bold;
  font-size: 30px;
}
.nav_itemblock {
  display: flex;
}
.nav_item {
  padding: 10px;
  color: #666666;
  font-size: 16px;
}

/* --- footer --- */
.footer_block {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 104px;
  padding: 45px;
  background-color: rgba(117, 117, 117, 1);
  margin-top: auto;
}
.copyright {
  color: rgba(255, 255, 255, 1);
}

/* --- modal --- */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
}
.close_icon {
  background-color: #ffffff;
  border: none;
  position: absolute;
  top: 32px;
  right: 35px;
}
#modal_title {
  font-size: 24px;
  margin: 15px 0;
  color: rgba(102, 102, 102, 1);
  position: relative;
}
.modal_submit {
  width: 90%;
  color: rgba(255, 255, 255, 1);
  padding: 8px 5px;
  background-color: rgba(68, 136, 153, 1);
  border-radius: 5px;
  margin-bottom: 10px;
  border: 1px solid rgba(204, 204, 204, 1);
}
.modal_overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.25);
}
.modal_content {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 340px;
  background-color: rgba(255, 255, 255, 1);
  border-radius: 5px;
  box-shadow: 0px 4px 60px #aaaaaa;
  padding: 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.modal_header_bar {
  background: linear-gradient(270deg, #337788 0%, #66aabb 100%);
  width: 100%;
  height: 10px;
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
  position: absolute;
  top: 0;
  left: 0;
}
.input {
  padding: 8px 5px;
  margin-bottom: 10px;
  border-radius: 5px;
  width: 90%;
  border: 1px solid rgba(204, 204, 204, 1);
}
.switchBtn {
  color: rgba(102, 102, 102, 1);
}
.modal_content #show_error_message {
  color: red;
}

/*divider*/
.divider {
  max-width: 95%;
  border: 0;
  border-top: 1px solid #e8e8e8;
  margin: 40px auto;
  height: 1px;
}

/* --- 共用 RWD  --- */
@media (max-width: 1250px) {
  .navbar {
    width: 95%;
  }
}
@media (max-width: 600px) {
  .nav_title {
    font-size: 28px;
  }
}