:root {
  --lecture-accent: #ff9114;
  --lecture-text: #4b4b4b;
  --lecture-muted: #888888;
  --lecture-panel: rgba(255, 255, 255, 0.92);
}

.lecture-page {
  background: linear-gradient(180deg, #fffaf4 0%, #ffffff 42%, #fff7ed 100%);
}

.lecture-hero {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.78) 38%, rgba(255, 255, 255, 0.18) 100%),
    url("../image/index/bannerBg.png") center top / cover no-repeat;
}

.lecture-hero-inner {
  min-height: 460px;
  display: flex;
  align-items: center;
}

.lecture-hero-copy {
  max-width: 620px;
}

.lecture-eyebrow {
  margin: 0 0 20px;
  color: var(--lecture-accent);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.28em;
}

.lecture-hero-copy h1 {
  margin: 0;
  color: var(--lecture-text);
  font-size: 64px;
  font-weight: 900;
  line-height: 1.1;
}

.lecture-intro {
  margin: 28px 0 0;
  color: #5d5d5d;
  font-size: 22px;
  line-height: 1.8;
}

.lecture-placeholder-section {
  padding: 0 0 110px;
}

.lecture-placeholder-card {
  margin-top: -72px;
  padding: 56px 56px 60px;
  border: 1px solid rgba(255, 145, 20, 0.14);
  border-radius: 32px;
  background: var(--lecture-panel);
  box-shadow: 0 24px 60px rgba(49, 41, 25, 0.08);
  text-align: center;
}

.lecture-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 112px;
  padding: 10px 20px;
  border-radius: 999px;
  background: rgba(255, 145, 20, 0.12);
  color: var(--lecture-accent);
  font-size: 16px;
  font-weight: 700;
}

.lecture-placeholder-card h2 {
  margin: 26px 0 18px;
  color: var(--lecture-text);
  font-size: 40px;
  font-weight: 700;
}

.lecture-placeholder-card p {
  max-width: 720px;
  margin: 0 auto;
  color: var(--lecture-muted);
  font-size: 18px;
  line-height: 1.9;
}

.lecture-back-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 172px;
  margin-top: 34px;
  padding: 15px 28px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ff9114 0%, #ff7a00 100%);
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
  box-shadow: 0 16px 28px rgba(255, 136, 25, 0.22);
}

@media (max-width: 1080px) {
  .lecture-hero-copy h1 {
    font-size: 52px;
  }

  .lecture-intro {
    font-size: 20px;
  }

  .lecture-placeholder-card {
    padding: 44px 32px 48px;
  }
}

@media (max-width: 768px) {
  .lecture-hero-inner {
    min-height: 360px;
    padding: 56px 0;
  }

  .lecture-eyebrow {
    margin-bottom: 14px;
    font-size: 14px;
  }

  .lecture-hero-copy h1 {
    font-size: 38px;
  }

  .lecture-intro {
    margin-top: 18px;
    font-size: 16px;
  }

  .lecture-placeholder-section {
    padding-bottom: 72px;
  }

  .lecture-placeholder-card {
    margin-top: -36px;
    padding: 34px 22px 38px;
    border-radius: 24px;
  }

  .lecture-placeholder-card h2 {
    margin-top: 20px;
    font-size: 28px;
  }

  .lecture-placeholder-card p {
    font-size: 15px;
  }

  .lecture-back-link {
    min-width: 148px;
    margin-top: 26px;
    padding: 13px 22px;
    font-size: 16px;
  }
}