/*====================================
# 主色調
==================================== */

:root {
  --c1: #16DFEA;
  --c2: #10DBA4;
  --c3: #66D3B1;
  --c4: #08219B;
  --black: #090F30;
  scroll-padding-top: 3rem;
  scroll-behavior: smooth;
}

/*====
# 共用
==== */

body {
  font-size: 18px;
  font-weight: 300;
  line-height: 30px;
  color: #fff;
  font-family: 'Roboto', 'Noto Sans TC', Arial, '微軟正黑體', '新細明體', Helvetica, sans-serif;
}

section {
  position: relative;
  padding: 3rem 1rem 6rem;
  overflow: hidden;
}

a:hover {
  text-decoration: none;
}

.top-title {
  color: #fffd8c;
  margin-bottom: 20px;
}

@media (max-width:576px) {
  .top-title {
    font-size: 2rem;
  }
}

.title {
  font-size: 2.4rem;
  position: relative;
  text-align: center;
  margin: 2rem -0.2rem 2rem 0;
  letter-spacing: 0.2rem;
}

.title-b {
  color: #08219B;
}

.title::before {
  position: absolute;
  content: url(../img/deco.png);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.2;
}

.a-link {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.m-btn {
  position: relative;
  display: block;
  margin: 1rem auto;
  width: 280px;
  font-size: 20px;
  text-align: center;
  background-color: var(--c1);
  border: 2px solid var(--c4);
  color: var(--c4);
  padding: 1em;
  font-weight: 500;
  border-radius: 50px;
  letter-spacing: 0.4rem;
  box-shadow: 0 3px 15px #09196d;
}

.m-btn:hover {
  color: var(--c4);
}

.side-btn {
  position: fixed;
  right: 0;
  bottom: 5rem;
  display: block;
  -webkit-writing-mode: vertical-lr;
  writing-mode: vertical-lr;
  background-color: var(--c1);
  color: var(--c4);
  font-size: 20px;
  font-weight: 400;
  padding: 20px 15px;
  border-radius: 20px 0 0 20px;
  transition: all 0.2s;
  z-index: 99;
}

.side-btn:hover {
  color: var(--c4);
  padding: 20px 35px 20px 15px;
}

.wobble-vertical:hover,
.wobble-vertical:focus {
  -webkit-animation: wobble-vertical 1s ease-in-out 1;
  animation: wobble-vertical 1s ease-in-out 1;
}

.wobble-vertical:active {
  transform: scale(0.95);
}

@keyframes wobble-vertical {
  16.65% {
    transform: translateY(8px);
  }

  33.3% {
    transform: translateY(-6px);
  }

  49.95% {
    transform: translateY(4px);
  }

  66.6% {
    transform: translateY(-2px);
  }

  83.25% {
    transform: translateY(1px);
  }

  100% {
    transform: translateY(0);
  }
}

/* =======================================
  # 
========================================= */
.sec-foreword {
  background-color: #08219B95;
  backdrop-filter: blur(10px);
  border-radius: 2rem 2rem 0 0;
}

.foreword {
  font-size: 1.25rem;
  margin: 3.5rem 0 1rem;
  line-height: 2.1;
  font-weight: 400;
}

.sec-color {
  background: -webkit-linear-gradient(0deg, var(--c4), #0d1d70);
  background: linear-gradient(0deg, var(--c4), #0d1d70);
  border-radius: 0 0 2rem 2rem;
  position: relative;
  background-color: var(--c4);
  color: #efefef;
  padding-top: 3rem;
}

.box {
  border: 1px solid #fffd8c;
  padding: 20px;
  border-radius: 10px;
  text-align: center;
  margin-bottom: 20px;
}

.box h3 {
  margin-bottom: 15px;
}

.box h3 span {
  color: #fffd8c;
}

.box p {
  font-weight: 500;
  text-align: left;
}

.box h4 {
  color: #fffd8c;
  border: 1px solid #fffd8c;
  padding: 10px 0;
  margin-bottom: 0;
}

.theme {
  padding-bottom: 2rem;
}

.theme-box {
  text-align: center;
  font-size: 1.4rem;
  background-color: #0a1c77;
  border: 1px solid #163cea;
  border-radius: 15px;
  margin: 0.4rem 0.2rem;
  padding: 15px 18px;
  font-weight: 500;
}

.theme-box i {
  color: var(--c1);
}

.audience-box {
  padding-bottom: 2rem;
}

.audience-tag {
  border: 1px solid #163cea;
  background-color: #4570ff20;
  border-radius: 15px;
  list-style: none;
  padding: 0;
  line-height: 1.9;
  text-align: center;
}

.audience-tag li {
  display: inline-block;
  font-weight: 400;
  border-radius: 6px;
  padding: 0 15px;
  margin: 10px 5px;
  background-color: var(--c2);
  color: var(--black);
  font-size: 23px;
}

.info {
  font-size: 1.25rem;
  line-height: 2.1;
  padding: 2rem 4rem 1.6rem;
  border: 1px solid #fff;
  border-radius: 2rem;
  backdrop-filter: blur(15px);
  box-shadow: 0 0 10px #00000022;
}

.info dt {
  color: var(--c2);
}


.info-txt {
  list-style-type: none;
  padding: 0;
}

.info-txt span {
  font-size: 24px;
  font-weight: 700;
  color: #fffd8c;
}

.sec-rule {
  background-color: #0f81b7;
  border-radius: 2rem;
}

.sec-rule h3 {
  padding-left: 1rem;
  color: #86ff6e;
}

.rule-box {
  border-left: 4px solid #86ff6e;
  color: #fff;
  margin-bottom: 3rem;
  font-weight: 400;
}

.mail-card {
  display: inline-block;
  margin: 0 auto;
  color: #303333;
  background-color: #efefef;
  border-radius: 20px;
  padding: 6px 10px;
  margin-top: 15px;
}


/* =======================================
  # sec-partner
========================================= */
.sec-partner {
  backdrop-filter: blur(10px);
  overflow: hidden;
  text-align: center;
  border-radius: 2rem 2rem 0 0;
  position: relative;
  background-color: #05022580;
  color: #efefef;
}

.partner-txt {
  margin: 5rem 0 3rem;
}

.partner-txt p {
  font-size: 1.6rem;
}

.partner-txt p strong {
  font-weight: bolder;
  font-size: 2rem;
  color: var(--c1);
}

.data-box {
  font-size: 22px;
  line-height: 2;
}

.txtc {
  display: flex;
  align-items: center;
  flex-direction: column;
  text-align: left;
}

.data-box ul {
  list-style-type: none;
}

.data-box span {
  color: #f9f871;
  font-weight: 700;
  padding-right: 3px;
}


/* =======================================
  # footer
========================================= */

.footer {
  position: relative;
  margin: 0;
  padding: 2rem 1rem;
  width: 100%;
  background-color: #100f1f;
}

.footer * {
  color: #fff;
}

.footer a:hover {
  color: #3db8ff;
}

.footer h2 {
  letter-spacing: 0.1rem;
  margin-bottom: 1.5rem;
}


.footer ul {
  list-style-type: square;
  font-size: 16px;
  line-height: 28px;
}

.footer-year {
  margin-bottom: 30px;
}

.footer-bottom {
  font-size: 16px;
  letter-spacing: 2px;
  padding-top: 15px;
  border-top: 1px solid #dfdfdf;
}

@media (max-width:768px) {
  .footer {
    padding-bottom: 5rem;
  }

}

@media (max-width:576px) {
  .footer h2 {
    font-size: 25px;
  }

  .f-logo {
    margin-top: 20px;
  }
}