html {
  font-size: 18px;
}

body {
  font-family: "Noto Sans TC", "Microsoft Jhenghei", sans-serif;
}

.l_bg {
  position: fixed;
  z-index: 0;
  width: 100%;
  height: 100%;
  background: url("img/kv/bg.png") right bottom/cover no-repeat;
  overflow: hidden;
}
.l_bg #particles-js {
  position: absolute;
  width: 200%;
  height: 200%;
  transform: translate(-50%, -50%);
}

.kv_warp {
  position: relative;
  z-index: 3;
}

.d_kv {
  position: relative;
}
.d_kv .cover {
  position: relative;
  z-index: 5;
}
.d_kv .arrow,
.d_kv .tit,
.d_kv .logo {
  position: absolute;
  z-index: 10;
}
.d_kv .logo {
  left: 3em;
  top: 3em;
  width: 200px;
}
.d_kv .tit {
  left: 47.5520833333%;
  top: 14.7727272727%;
  width: 42.3958333333%;
}
.d_kv .tit .tit2 {
  margin-top: 2vh;
}
.d_kv .tit .tit3 {
  margin-top: 6vh;
}
.d_kv .tit .sub {
  margin-top: 1em;
  font-size: 2em;
  font-weight: 700;
  color: #fbc49d;
}
.d_kv .tit .sub span {
  margin-left: 0.75em;
  color: #fff;
}
.d_kv .arrow {
  left: 42.7083333333%;
  top: 37.2727272727%;
  width: 57.2916666667%;
  height: 3.4090909091%;
  text-align: right;
  overflow: hidden;
}
.d_kv .arrow img {
  position: absolute;
  right: 3em;
  top: 0;
  display: block;
  width: auto;
  height: 100%;
  transform: translateX(-100%);
  transition: transform 2400ms 1200ms;
}
.d_kv .arrow img.aos-animate {
  transform: translateX(0%);
}

.l_main {
  position: relative;
  z-index: 3;
  background-color: rgba(4, 22, 36, 0.59);
}

.l_section {
  padding-top: 3em;
  padding-bottom: 3em;
}

.s_intro {
  margin-bottom: 2em;
  position: relative;
  font-size: 1.25em;
  font-weight: 300;
  line-height: 1.8;
  background-color: #fff;
}
.s_intro .spot {
  margin-bottom: 3rem;
  position: relative;
  margin-top: -40px;
}
.s_intro .spot .spt_tit {
  position: relative;
  top: 30px;
  z-index: 2;
  display: inline-block;
  padding: 1rem 2rem;
  font-size: 2rem;
  line-height: 1;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 2px 0 #ff5a54;
  background: linear-gradient(135deg, #ff5a54, #fbc49d);
}
.s_intro .spot .spt_tit::before {
  content: "";
  position: absolute;
  left: 0;
  top: 100%;
  border: 20px solid #fff;
  border-color: #d5160f #d5160f transparent transparent;
}
.s_intro .spot .spt_area {
  position: relative;
  z-index: 1;
  margin: 0 40px;
  padding: 40px;
  background-color: #eee;
}
.s_intro .spot .spt_area::before {
  content: "";
  position: absolute;
  right: -10px;
  bottom: -10px;
  border: 20px solid #ff5a54;
  border-color: transparent #ff5a54 #ff5a54 transparent;
}
.s_intro .spot .spt {
  position: relative;
  padding: 0.125rem 0;
  padding-left: 2em;
  font-size: 1.125rem;
}
.s_intro .spot .spt::before {
  content: "";
  position: absolute;
  left: 1em;
  top: 50%;
  width: 12px;
  height: 12px;
  margin-top: -6px;
  margin-left: -6px;
  border-radius: 6px;
  background-color: #fbc49d;
}
.s_intro .spot .spt:nth-child(2)::before {
  background-color: #ff5a54;
}
.s_intro .spot .spt:nth-child(3)::before {
  background-color: #d5160f;
}
.s_intro p:last-child {
  margin-bottom: 0;
}
.s_intro .cta {
  position: absolute;
  width: 100%;
  bottom: -2rem;
  font-size: 0;
  text-align: center;
}
.s_intro .cta .cta_btn {
  font-size: 1.25rem;
  display: inline-block;
  background-color: #ff5a54;
  border-radius: 45px;
  font-weight: 700;
}
.s_intro .cta .cta_btn.support {
  margin-left: 1.5em;
  background-color: #5f3a4c;
}
.s_intro .cta .cta_btn a {
  display: block;
  padding: 0.75em 2em;
  color: #fff;
}
.s_speaker {
  color: #fff;
}
.s_speaker .spk_item .img img {
  border-radius: 10px;
}
.s_speaker .spk_item .infomation {
  padding-left: 30px;
}
.s_speaker .spk_item .name {
  font-size: 2em;
  font-weight: 700;
  color: #ff5a54;
}
.s_speaker .spk_item .title {
  color: #fbc49d;
  font-size: 1.125em;
  margin: 0.25em 0 0.5em;
}
.s_speaker .spk_item .intro {
  max-width: 30em;
  padding-bottom: 2em;
  font-size: 1.25em;
  line-height: 1.66;
  font-weight: 300;
}

.s_gift .container {
  position: relative;
  padding: 0 1em 1em 15px;
}
.s_gift .container::before {
  content: "";
  position: absolute;
  left: calc(15px + 1em);
  right: 0;
  top: 1em;
  bottom: 0;
  z-index: 1;
  border-radius: 20px;
  background: linear-gradient(135deg, #ff5a54, #fbc49d);
}
.s_gift .item_wrap {
  position: relative;
  z-index: 2;
  border-radius: 20px;
  background-color: #fff;
}
.s_gift .item_wrap .wrap {
  display: flex;
}
.s_gift .item {
  padding-left: 10px;
  padding-right: 10px;
  text-align: center;
}
.s_gift .item .categ {
  border-radius: 2em;
  padding: 0.5em 1.5em;
  display: inline-block;
  background-color: #ff5a54;
  font-size: 1.125em;
  font-weight: 300;
  color: #fff;
}
.s_gift .item .img {
  margin-top: 1.5em;
  width: 280px;
}
.s_gift .item .name {
  margin-top: 1.5em;
  font-size: 1.5em;
  font-weight: 700;
  color: #5f3a4c;
}
.s_gift .tips {
  margin-top: 0.33em;
  text-align: center;
  color: #fbc49d;
  font-size: 0.875em;
}

.s_about {
  margin-top: 3em;
}
.s_about .img {
  width: 300px;
}
.s_about .parag {
  font-size: 0.875em;
  font-weight: 300;
  color: #fff;
}
.s_about .link {
  color: #0990b0;
  margin-top: 1em;
  text-decoration: underline;
}
.s_about .link:hover {
  color: #fbc49d;
}

@media (max-width: 767px) {
  .l_section {
    padding-top: 2em;
    padding-bottom: 2em;
  }

  .s_intro {
    padding-bottom: 3em;
    font-size: 1em;
    line-height: 1.5;
  }
  .s_intro .spot {
    margin-top: -30px;
  }
  .s_intro .spot .spt_tit {
    font-size: 1.5rem;
  }
  .s_intro .spot .spt_tit::before {
    border-width: 10px;
  }
  .s_intro .spot .spt_area {
    margin: 0 20px;
    padding: 40px 20px;
  }
  .s_intro .spot .spt_area::before {
    content: "";
    position: absolute;
    right: -5px;
    bottom: -5px;
    border-width: 15px;
  }
  .s_intro .spot .spt {
    padding: 0.33em 0;
    line-height: 1.2;
  }
  .s_intro .spot .spt::before {
    left: -19px;
  }
  .s_intro p {
    padding-left: 1em;
    padding-right: 1em;
  }
  .s_intro .cta {
    bottom: -27px;
  }
  .s_intro .cta .cta_btn {
    font-size: 1.125rem;
  }
  .s_intro .cta .cta_btn.support {
    margin-left: 1rem;
  }

  .s_speaker .spk_item .img {
    max-width: 80%;
    margin: 0 auto;
  }
  .s_speaker .spk_item .name,
.s_speaker .spk_item .title {
    text-align: center;
  }
  .s_speaker .spk_item .name {
    margin-top: 1rem;
  }
  .s_speaker .spk_item .intro {
    padding: 0 1em 2em;
    font-size: 1em;
    line-height: 1.5;
    font-weight: 300;
  }

  .s_gift .container {
    position: relative;
    padding: 0 15px;
  }
  .s_gift .container::before {
    display: none;
  }
  .s_gift .item_wrap {
    border-radius: 0;
    padding: 0;
    background-color: transparent;
  }
  .s_gift .item_wrap .wrap {
    flex-wrap: wrap;
  }
  .s_gift .item_wrap .col-12 {
    position: relative;
    padding: 0 1.5em 1.5em 15px;
  }
  .s_gift .item_wrap .col-12::before {
    content: "";
    position: absolute;
    left: calc(15px + 1em);
    right: 1em;
    top: 1em;
    bottom: 1em;
    z-index: 1;
    border-radius: 20px;
    background: linear-gradient(135deg, #ff5a54, #fbc49d);
  }
  .s_gift .item {
    position: relative;
    z-index: 2;
    border-radius: 20px;
    background-color: #fff;
    padding: 2em 1em;
    text-align: center;
  }
  .s_gift .item .categ {
    margin-bottom: 1rem;
  }
  .s_gift .item .img {
    margin: 0 auto;
    width: 100%;
    max-width: 220px;
  }
  .s_gift .item .name {
    margin-top: 0;
    font-size: 1.25em;
    font-weight: 700;
    color: #5f3a4c;
  }
  .s_gift .tips {
    margin-top: -0.5em;
  }

  .s_about .img {
    width: 240px;
    margin: 0 auto;
  }
  .s_about .parag {
    margin-top: 1rem;
    padding-left: 1rem;
    padding-right: 1rem;
  }
}