html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  position: relative;
  font-family: "PingFang-TC", ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  background-image: url(../images/bg.jpg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
img {
  max-width: 100%;
  height: auto;
}
div:focus {
  outline: none;
}
a {
  text-decoration: none;
  color: #fff;
}
a:hover {
  color: #fff;
}
textarea {
  resize: none;
}
.gotop {
  position: fixed;
  right: 20px;
  bottom: 100px;
  z-index: 99999;
  width: 55px;
  text-align: center;
  cursor: pointer;
}
/*--------------------------------------------------------------
# font-size
--------------------------------------------------------------*/
.fs_6 {
  --min-size: 14;
  --max-size: 15;
  --font-size: calc((var(--min-size) * 1px) + (var(--max-size) - var(--min-size)) * ((100cqw - 320px) / (1920 - 320)));
  font-size: clamp(var(--min-size) * 1px, var(--font-size), var(--max-size) * 1px);
}
.fs_5 {
  --min-size: 16;
  --max-size: 18;
  --font-size: calc((var(--min-size) * 1px) + (var(--max-size) - var(--min-size)) * ((100cqw - 320px) / (1920 - 320)));
  font-size: clamp(var(--min-size) * 1px, var(--font-size), var(--max-size) * 1px);
}
.fs_4 {
  --min-size: 17;
  --max-size: 24;
  --font-size: calc((var(--min-size) * 1px) + (var(--max-size) - var(--min-size)) * ((100cqw - 320px) / (1920 - 320)));
  font-size: clamp(var(--min-size) * 1px, var(--font-size), var(--max-size) * 1px);
}
.fs_3 {
  --min-size: 25;
  --max-size: 32;
  --font-size: calc((var(--min-size) * 1px) + (var(--max-size) - var(--min-size)) * ((100cqw - 320px) / (1920 - 320)));
  font-size: clamp(var(--min-size) * 1px, var(--font-size), var(--max-size) * 1px);
}
.fs_2 {
  --min-size: 30;
  --max-size: 40;
  --font-size: calc((var(--min-size) * 1px) + (var(--max-size) - var(--min-size)) * ((100cqw - 320px) / (1920 - 320)));
  font-size: clamp(var(--min-size) * 1px, var(--font-size), var(--max-size) * 1px);
}
.fs_1 {
  --min-size: 40;
  --max-size: 50;
  --font-size: calc((var(--min-size) * 1px) + (var(--max-size) - var(--min-size)) * ((100cqw - 320px) / (1920 - 320)));
  font-size: clamp(var(--min-size) * 1px, var(--font-size), var(--max-size) * 1px);
}
.fs_small {
  --min-size: 12;
  --max-size: 14;
  --font-size: calc((var(--min-size) * 1px) + (var(--max-size) - var(--min-size)) * ((100cqw - 320px) / (1920 - 320)));
  font-size: clamp(var(--min-size) * 1px, var(--font-size), var(--max-size) * 1px);
}
/* nav ========================================== */
.navbar {
  width: 100%;
  position: fixed;
  top: 0;
  z-index: 999;
}
.logo {
  height: 24px;
}
.list-group {
  z-index: 999;
  position: fixed;
  right: 0;
  top: 25%;
  padding: 20px 10px 10px 10px;
  border-radius: 20px 0 0 20px;
  background-image: -webkit-linear-gradient(292deg, rgba(56, 39, 137, 0.80) 16.58%, rgba(160, 67, 143, 0.80) 42.49%, rgba(21, 30, 136, 0.80) 77.20%);
  background-image: -moz-linear-gradient(292deg, rgba(56, 39, 137, 0.80) 16.58%, rgba(160, 67, 143, 0.80) 42.49%, rgba(21, 30, 136, 0.80) 77.20%);
  background-image: -o-linear-gradient(292deg, rgba(56, 39, 137, 0.80) 16.58%, rgba(160, 67, 143, 0.80) 42.49%, rgba(21, 30, 136, 0.80) 77.20%);
  background-image: linear-gradient(158deg, rgba(56, 39, 137, 0.80) 16.58%, rgba(160, 67, 143, 0.80) 42.49%, rgba(21, 30, 136, 0.80) 77.20%);
}
.list-group-item {
  background-color: unset;
  color: #f1f1f1;
  padding: 1rem;
  border: 0;
  border-bottom: #f2f2f2 1px solid;
  font-size: 14px;
  transition: 0.5ms;
}
.list-group-item:hover {
  background-color: unset;
  color: #FFF100;
  font-weight: bolder;
}
.list-group-item.active {
  background-image: url("../images/arrow-list.svg");
  background-repeat: no-repeat;
  background-position: right;
  background-size: 15px;
  background-color: unset;
  border: 0;
  border-bottom: #f2f2f2 1px solid;
  color: #FFF100;
  font-weight: bolder;
}
.list-group-item-action:active {
  color: #FFF100;
  background-color: unset;
}
.list_icon {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  top: -10%;
  width: 130px;
}
/* footer  ========================================== */
.footer {
  position: relative;
  z-index: 0;
}
.footer::before {
  content: '';
  background-image: url("../images/f_icon.png");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 100% auto;
  position: absolute;
  right: 0;
  bottom: 85%;
  width: 100px;
  height: 40px;
  z-index: -1;
}
.bg_color {
  background: linear-gradient(to right, #41489b 0%, #824d9a 100%);
}
.f_icon img {
  max-height: 25px;
}
.t_top {
  margin-top: 140px;
}
.t_line {
  width: auto;
  text-align: center;
  border-bottom: 2px solid #FFF100;
  display: inline;
  padding: 5px 0;
}
.banner_area img {
  max-width: 800px;
  width: 100%;
}
.btn_box {
  position: relative;
  z-index: 99;
  margin-top: -7%;
  width: 100%;
}
.btn_l {
  position: absolute;
  top: 0;
  left: 4%;
  z-index: 0;
  width: 50%;
}
.btn_r {
  position: relative;
  z-index: 5;
  top: 5px;
  right: -46%;
  width: 50%;
}
.pic_area {
  max-width: 800px;
}
.owl_area {
  max-width: 960px;
}
@media (max-width: 375px) {
  .logo {
    height: 18px;
  }
}
@media (max-width: 425px) {
  .navbar {
    height: 60px;
  }
  .logo {
    height: 20px;
  }
}
@media (max-width: 768px) {
  .navbar {
    background: #fff;
  }
  #secArea {
    padding-top: 70px !important;
  }
  .navbar > .container-fluid {
    justify-content: center;
  }
  .navbar-expand-sm {
    flex-wrap: wrap;
  }
  .navbar-brand {
    margin: 0;
  }
  .navbar-brand a {
    width: 100%;
    text-align: center;
  }
  .list-group {
    width: 100%;
    position: relative;
    top: 0;
    left: 0;
    border-radius: 0;
    display: flex;
    overflow-x: scroll;
    flex-wrap: nowrap;
    height: 60px;
    flex-flow: row;
    justify-content: space-between;
    padding: 0 5px;
    background-color: #000000;
  }
  .list-group a {
    width: fit-content;
    flex-grow: 0;
    white-space: nowrap;
  }
  .list-group .list_icon {
    display: none;
  }
  .list-group-item.active {
    background-image: url("../images/arrow-list.svg");
    background-repeat: no-repeat;
    background-position: right 20px;
    background-size: 12px;
  }
}
@media (min-width: 769px) {
  .t_top {
    margin-top: 80px;
  }
  .btn_r {
    top: 15px;
  }
  .footer::before {
    bottom: 80%;
    width: 130px;
    height: 50px;
  }
  .container {
    max-width: 720px;
  }
}
@media (min-width: 1200px) {
  .footer::before {
    bottom: 10%;
    width: 200px;
    height: 100px;
  }
}
@media (min-width:1400px) {
  .pic_area {
    max-width: 1200px;
  }
  .container {
    max-width: 1100px;
  }
  .owl_area {
    max-width: 1100px;
  }
}
@media (min-width:1600px) {
  .pic_area {
    max-width: 1300px;
  }
  .container {
    max-width: 1200px;
  }
  .owl_area {
    max-width: 1200px;
  }
}
/**@media (min-width:1900px) {
  .pic_area {
    max-width: 1400px;
  }
  .container {
    max-width: 1300px;
  }
  .owl_area {
    max-width: 1300px;
  }
}**/