/* Hero 區塊 */
.hero-section {
  width: 100%;
  height: calc(100vh - 67px);
  background: url(../image/cover.webp) top center;
  background-size: cover;
  background-repeat: no-repeat;
  margin-top: 67px;
  display: flex;
  justify-content: flex-start; 
  align-items: center;
}
.hero-section .container {
  width: 100%; 
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 8%; 
  box-sizing: border-box; 
}
.hero-title {
  max-width: 500px; 
  height: auto;
  margin-top: -100px;
}
.hero-title img {
  max-width: 100%;
  height: auto;
  display: block; 
}

/* 精華片段區 */
.text-underline{
  text-decoration: underline;
  color: var(--primary-color);
}
.highlight-videos-section {
  padding: 60px 0;
}

.section-description {
  max-width: 800px;
  margin: 0 auto 40px;
  font-size: 1.1em;
}
.section-description span, .section-description a{
  color: var(--primary-color);
}
.video-highlight-container{
  text-align: center;
  background-color: #f0f0f0;
  padding: 40px;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
.video-highlight-container h2{
  margin-bottom: 20px;
}
.video-grid {
  display: flex; 
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap; 
}
.video-item {
  flex: 1; 
  min-width: 300px;
  max-width: 560px; 
}
.video-item iframe {
  width: 100%;
  height: 315px;
  border-radius: 8px;
}
.unlock-prompt {
  margin-top: 20px;
  font-size: 1.2em;
  font-weight: bold;
}
.lock-icon {
  margin-right: 8px;
}

/* 誘因提示區 */
.incentive-section {
  background-color: #f8f8f8; 
  padding: 40px 0;
  text-align: center;
}
.incentive-section .container{
  display: flex;
  align-items: center;
  justify-content: center;
}
.incentive-icon {
  width: 200px;
  height: auto;
  margin: 20px;
}

.incentive-title {
  font-size: 2em;
  color: var(--dark-grey);
  margin-bottom: 10px;
}

.incentive-description {
  font-size: 1.1em;
  color: var(--secondary-color);
}
/* 填表單 */
.registration-form-section {
  padding: 60px 0;
  background-color: #fff;
}

.form-title {
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 20px;
}

.form-description {
  text-align: center;
  margin-bottom: 40px;
  font-size: 1.1em;
  color: var(--secondary-color);
}

.registration-form {
  max-width: 1000px;
  margin: 0 auto;
  padding: 30px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.registration-form h4{
  padding: 8px 0 12px 0;
  border-bottom: solid 2px var(--primary-color);
}
.form-actions{
  display: flex;
    flex-direction: column; 
    align-items: center; 
    gap: 16px;
}
.submit-button{
  background-color: var(--primary-color);
  color: white;
  padding: 8px 60px;
  border-radius: 40px;
  font-size: 1em;
}
.submit-button:hover{
  background-color: #CA9553; 
  color: white;
}
h6{
  font-weight: 600;
  margin: 12px 0;
}
ol li{
  margin-left: 2em;
}

/* 鎖定影片區 */
.locked-video-section {
  padding: 60px 0;
  background-color: #f2f2f2;
  text-align: center;
}
.video-container {
  position: relative;
  max-width: 1000px;
  min-height: 300px;
  padding: 30px;
  margin: 0 auto;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.video-container.locked .video-overlay {
  display: flex; 
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8); 
  color: white;
  font-size: 1.5em;
  text-align: center;
  z-index: 10; 
  backdrop-filter: blur(8px); 
  transition: opacity 0.5s ease;
}

.video-container.unlocked .video-overlay {
  opacity: 0;
  pointer-events: none; 
}

.video-container video {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 20px;
}
#full-speech-video-2 {
  display: none;
  margin-top: 20px;
}
h3.video-title span {
  background-color: var(--primary-color);
  padding: 6px 16px;
  border-radius: 40px;
  color: white;
  margin-left: 12px;
  font-size: 0.75em;
}

/* 注意事項區 */
.notes-section {
  padding: 40px 0;
  background-color: #fdfdfd;
  border-top: 1px solid var(--border-color);
}
.notes-title {
  text-align: center;
  font-size: 1.8em;
  margin-bottom: 20px;
}
.notes-title button {
  padding-right: 28px !important; 
  position: relative;
  font-size: 1em;
}
.notes-title button::after {
  content: '+'; 
  display: inline-block;
  margin-left: 12px; 
  transition: transform 0.3s ease-in-out; 
  position: absolute; 
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 600; 
}

.notes-title button:not(.collapsed)::after {
  content: '-'; 
  transform: translateY(-50%) rotate(0deg); 
}
.notes-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 0.95em;
}
.notes-content li {
  margin-bottom: 8px;
}

/* 固定 CTA 按鈕 */
.floating-cta-button {
  position: fixed;
  bottom: 20px;
  left: 20px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 100;
  display: flex;
  align-items: center;
  border-radius: 50%;
}
.floating-cta-button img{
  width: 160px;
  height: auto;
  border-radius: 50%;
}
.floating-cta-button.hidden {
  opacity: 0;
  pointer-events: none; 
}


@media (max-width: 768px) {
  .container {
      padding: 0 16px;
  }
  .hero-section {
    height: 50vh;
    padding: 60px 0;
  }
  .hero-section .container {
    padding-left: 5%; 
    padding-right: 5%;
  }
  .hero-title {
      max-width: 70%; 
      margin-top: 70px;
  }
  .video-highlight-container{
    padding: 12px;
  }
  .highlight-videos-section {
    padding: 28px 0;
  }

  .video-grid {
      flex-direction: column; 
      gap: 20px;
  }
  .video-item {
      max-width: 100%;
      margin: 0 auto;
  }
  .video-item iframe {
      height: 200px;
  }
  .incentive-section,
  .registration-form-section,
  .locked-video-section,
  .notes-section {
      padding: 40px 0;
  }
  .incentive-section .container{
    flex-direction: column; 
    align-items: center;
  }
  .form-title {
      font-size: 2em;
  }
  .form-description {
      font-size: 1em;
  }
  .registration-form {
      padding: 20px;
  }
  .registration-form .row > div { 
    margin-bottom: 16px;
  }
  .registration-form .row > div:last-child {
      margin-bottom: 0;
  }
  .form-check-inline {
      margin-right: 1rem !important;
      margin-bottom: 0.5rem;
  }
  .notes-section{
    padding: 12px 0;
  }
  .floating-cta-button {
      bottom: 16px;
      left: 16px;
  }
  .floating-cta-button img{
    width: 90px;
  }
  .floating-cta-button.hidden {
      transform: translateX(-50%) translateY(50px);
  }
}