.banner_index {
  position: relative;
  width: 94.7916666667%;
  margin-left: auto;
}
@media (max-width: 980px) {
  .banner_index {
    width: 90%;
  }
}
.banner_index::before, .banner_index:after {
  content: "";
  position: absolute;
  background-size: contain;
  background-repeat: no-repeat;
}
.banner_index:before {
  background-image: url("../images/banner_index_left.png");
  width: 23.5714285714%;
  padding-bottom: 13.7912087912%;
  left: -4.5%;
  top: 32%;
  z-index: 0;
}
@media (max-width: 980px) {
  .banner_index:before {
    width: 73.9655172414%;
    padding-bottom: 43.275862069%;
    left: -8%;
    top: 20%;
  }
}
.banner_index:after {
  background-image: url("../images/index_dec_line.png");
  width: 5.1041666667%;
  padding-bottom: 2.96875%;
  left: -3.4%;
  bottom: 5.9%;
  z-index: 0;
}
@media (max-width: 980px) {
  .banner_index:after {
    width: 16.8965517241%;
    padding-bottom: 9.8275862069%;
    left: -17%;
    bottom: 13.2%;
  }
}
.banner_index .index_title {
  position: absolute;
  z-index: 2;
  left: 5%;
  top: 13%;
  text-shadow: -2px -4px 4px rgba(0, 0, 0, 0.521);
}
@media (max-width: 980px) {
  .banner_index .index_title {
    top: 5%;
    left: 12%;
  }
}
.banner_index .index_title:before {
  content: "";
  position: absolute;
  left: -30px;
  top: 15%;
  width: 10px;
  height: 85%;
  background: #14360a;
}
@media (max-width: 1440px) {
  .banner_index .index_title:before {
    height: 80%;
    top: 21%;
    width: 9px;
  }
}
@media (max-width: 980px) {
  .banner_index .index_title:before {
    top: 4.5%;
    height: 30vw;
    width: 7px;
    left: -5.5vw;
  }
}
.banner_index .index_title h1 {
  display: flex;
  flex-wrap: nowrap;
  white-space: nowrap;
  align-items: baseline;
  margin-bottom: 5px;
  filter: drop-shadow(0px 4px 4px rgba(0, 0, 0, 0.25));
}
@media (max-width: 980px) {
  .banner_index .index_title h1 {
    flex-direction: column;
    align-items: flex-start;
  }
}
.banner_index .index_title h1 img {
  width: 16vw;
  margin: 0 10px;
  display: inline-block;
}
@media (max-width: 980px) {
  .banner_index .index_title h1 img {
    width: 50vw;
    margin: 0;
    transform: translateY(5%);
    filter: drop-shadow(-2px -2px 4px rgba(0, 0, 0, 0.521));
  }
}
@media (max-width: 980px) {
  .banner_index .index_title h1 .txt_block {
    width: 100%;
    flex: 1;
  }
}
.banner_index .index_title h1 span {
  font-size: clamp(18px, 3vw, 54px);
  color: white;
  font-weight: bold;
}
@media (max-width: 980px) {
  .banner_index .index_title h1 span {
    font-size: clamp(30px, 9vw, 54px);
  }
}
.banner_index .index_title .index_txt {
  color: white;
  width: 36vw;
  max-width: 660px;
  font-size: clamp(12px, 1.5vw, 24px);
  line-height: 1.6;
  font-weight: 300;
  filter: drop-shadow(0px 4px 4px rgba(0, 0, 0, 0.25));
  text-shadow: 0px 4px 4px rgba(0, 0, 0, 0.171);
}
@media (max-width: 980px) {
  .banner_index .index_title .index_txt {
    margin-top: 20px;
    width: 90%;
    font-size: clamp(16px, 3.5vw, 24px);
    text-shadow: 0px 4px 4px rgba(0, 0, 0, 0.521);
  }
}
.banner_index figure {
  background-image: url("../images/banner_index.png");
  padding-bottom: 43.3516483516%;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  position: relative;
  z-index: 1;
}
@media (max-width: 980px) {
  .banner_index figure {
    background-image: url("../images/banner_index_m.png");
    padding-bottom: 149.6551724138%;
  }
}
.banner_index figure::before, .banner_index figure:after {
  content: "";
  position: absolute;
  background-size: contain;
  background-repeat: no-repeat;
}
.banner_index figure:before {
  background-image: url("../images/dec_footprint.png");
  width: 15.2197802198%;
  padding-bottom: 17.3626373626%;
  right: -8%;
  bottom: -10%;
  z-index: 5;
}
@media (max-width: 980px) {
  .banner_index figure:before {
    display: none;
  }
}
.banner_index .btn_group {
  display: flex;
  position: relative;
  z-index: 2;
  gap: 5%;
  transform: translateY(-2.4vw);
  margin-left: 3%;
}
@media (max-width: 980px) {
  .banner_index .btn_group {
    flex-direction: column;
    gap: 20px;
    margin-left: 0;
    transform: translateY(-5.6vw);
    margin-left: 3.3%;
  }
}
.banner_index .btn_group a {
  color: white;
  flex: 1;
  max-width: 735px;
  aspect-ratio: 756/161;
  display: flex;
  align-items: center;
  padding-left: 110px;
  background-size: contain;
  background-position: center;
  position: relative;
  background-repeat: no-repeat;
  overflow: hidden;
  max-width: 38vw;
  padding-left: 7.5%;
}
@media (max-width: 980px) {
  .banner_index .btn_group a {
    max-width: 95%;
    padding-left: 15%;
  }
}
.banner_index .btn_group a:hover .btn_arrow {
  transform: translateY(-50%) translateX(10px);
}
.banner_index .btn_group a .btn_arrow {
  position: absolute;
  right: 6%;
  top: 47%;
  transform: translateY(-50%);
  width: 5vw;
  height: 3px;
  background-color: currentColor;
  transition: all 0.3s linear;
}
@media (max-width: 980px) {
  .banner_index .btn_group a .btn_arrow {
    width: 10vw;
    height: 2px;
  }
}
.banner_index .btn_group a .btn_arrow .arrow_line {
  position: absolute;
  height: 3px;
  width: 20px;
  right: 10px;
  background-color: white;
  top: 50%;
  transform: translateY(-50%);
}
@media (max-width: 980px) {
  .banner_index .btn_group a .btn_arrow .arrow_line {
    width: 3.1vw;
    height: 2px;
    right: 1.4vw;
  }
}
.banner_index .btn_group a .btn_arrow:before {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: inherit;
}
@media (max-width: 980px) {
  .banner_index .btn_group a .btn_arrow:before {
    width: 4.5vw;
    height: 4.5vw;
  }
}
.banner_index .btn_group a .btn_arrow:after {
  content: "";
  position: absolute;
  right: 9px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-top: 3px solid white;
  border-right: 3px solid white;
  transform: translateY(-50%) rotate(45deg);
}
@media (max-width: 980px) {
  .banner_index .btn_group a .btn_arrow:after {
    right: 1.2vw;
    width: 1.8vw;
    height: 1.8vw;
    border-width: 2px;
  }
}
.banner_index .btn_group a.btn_group1 {
  background-image: url("../images/signup_bg.png");
}
.banner_index .btn_group a.btn_group1 .btn_arrow {
  color: #bca658;
}
.banner_index .btn_group a.btn_group2 {
  background-image: url("../images/bg_Selection.png");
}
.banner_index .btn_group a.btn_group2 .btn_arrow {
  color: #6aa36f;
}
.banner_index .btn_group a p {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transform: translateY(-0.5vw);
}
@media (max-width: 980px) {
  .banner_index .btn_group a p {
    transform: translateY(-1.5vw);
    line-height: 1.4;
  }
}
.banner_index .btn_group a p span {
  text-shadow: 0px 4px 4px rgba(0, 0, 0, 0.171);
}
.banner_index .btn_group a .btn_zh {
  font-size: clamp(19px, 2.3vw, 40px);
  font-weight: 500;
}
@media (max-width: 980px) {
  .banner_index .btn_group a .btn_zh {
    font-size: clamp(16px, 4vw, 40px);
  }
}
.banner_index .btn_group a .btn_en {
  font-family: "Noto Serif TC", serif;
  font-size: clamp(12px, 1vw, 20px);
}
@media (max-width: 980px) {
  .banner_index .btn_group a .btn_en {
    font-size: clamp(12px, 2.5vw, 20px);
  }
}