/* =========================
   intro 페이지 전용
========================= */

.intro-page {
  background: #f3f3f3;
  min-height: 100vh;
  color: #111111;
}

/* 헤더 */
.intro-page .header {
  background: rgba(0, 0, 0, 0.72);
  border-bottom: 1px solid rgba(255, 200, 0, 0.15);
  backdrop-filter: blur(6px);
}

.intro-page .site-title,
.intro-page .nav a {
  color: #ffffff;
}

/* =========================
   히어로
========================= */

.intro-hero {
  position: relative;
  width: 100%;
  height: 85vh;
  overflow: hidden;
}

.intro-hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.intro-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(0, 0, 0, 0.82) 0%,
    rgba(0, 0, 0, 0.55) 28%,
    rgba(0, 0, 0, 0.18) 58%,
    rgba(0, 0, 0, 0.1) 100%
  );
}

.intro-hero-text {
  position: absolute;
  left: 8%;
  bottom: 18%;
  z-index: 2;
  max-width: 620px;
}

.intro-label {
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 14px;
}

.intro-hero-text h2 {
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: 1.05;
  margin-bottom: 18px;
  color: #ffffff;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.intro-hero-text p {
  font-size: 1.12rem;
  line-height: 1.8;
  color: #ffd84d;
  font-weight: 600;
}

/* =========================
   본문 영역
========================= */

#start.section {
  width: min(960px, 92%);
  margin: 0 auto;
  padding: 90px 0 100px;
}

/* 큰 제목 */
#start h2 {
  font-size: 2rem;
  margin-bottom: 26px;
  letter-spacing: -0.02em;
  color: #111111;
  font-weight: 800;
}

/* 요약 박스 */
.summary-box {
  background: #ffffff;
  padding: 28px 30px;
  border-radius: 20px;
  margin-bottom: 26px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.06);
}

.summary-box h3 {
  font-size: 1.28rem;
  margin-bottom: 14px;
  color: #111111;
  font-weight: 800;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(255, 200, 0, 0.5);
}

.summary-box ul {
  margin-top: 12px;
  margin-bottom: 0;
  padding-left: 22px;
  list-style: disc;
}

.summary-box li {
  margin-bottom: 10px;
  color: #222222;
  line-height: 1.85;
}

/* 본문 카드 */
.guide-content {
  background: #ffffff;
  color: #111111;
  padding: 34px 32px;
  border-radius: 20px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.06);
}

/* 대제목 */
.guide-content h3 {
  font-size: 1.5rem;
  margin-top: 44px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  color: #111111;
  border-bottom: 2px solid rgba(255, 200, 0, 0.55);
  letter-spacing: -0.02em;
  font-weight: 800;
}

.guide-content h3:first-child {
  margin-top: 0;
}

/* 소제목 */
.guide-content h4 {
  font-size: 1.12rem;
  margin-top: 26px;
  margin-bottom: 10px;
  color: #111111;
  font-weight: 800;
}

/* 문단 */
.guide-content p {
  color: #222222;
  margin-bottom: 18px;
  line-height: 1.95;
  word-break: keep-all;
  font-size: 1rem;
}

/* 리스트 */
.guide-content ul,
.guide-content ol {
  margin-top: 8px;
  margin-bottom: 20px;
  padding-left: 22px;
  list-style-position: outside;
}

.guide-content ul {
  list-style: disc;
}

.guide-content ol {
  list-style: decimal;
}

.guide-content li {
  color: #222222;
  margin-bottom: 10px;
  line-height: 1.85;
}

/* 강조 */
.guide-content strong,
.summary-box strong {
  color: #d8a400;
  font-weight: 800;
}

/* 등급 줄 */
.guide-content .rank-line {
  display: block;
  padding: 16px 18px;
  margin-bottom: 18px;
  background: #fff8dc;
  border-left: 4px solid #ffc800;
  border-radius: 12px;
  color: #111111;
  font-weight: 700;
  line-height: 1.8;
}

/* 참고 / 팁 박스 */
.guide-content .mini-box {
  background: #fff8dc;
  border-left: 4px solid #ffc800;
  border-radius: 12px;
  padding: 16px 18px;
  margin: 18px 0 22px;
}

.guide-content .mini-box p:last-child,
.guide-content .mini-box ul:last-child,
.guide-content .mini-box ol:last-child {
  margin-bottom: 0;
}

/* =========================
   반응형
========================= */

@media (max-width: 900px) {
  .intro-hero {
    height: 88vh;
  }

  .intro-hero-text {
    left: 6%;
    right: 6%;
    bottom: 10%;
    max-width: none;
  }

  .intro-label {
    font-size: 0.82rem;
    margin-bottom: 10px;
  }

  .intro-hero-text h2 {
    font-size: clamp(2.1rem, 9vw, 3.4rem);
    line-height: 1.08;
    margin-bottom: 14px;
  }

  .intro-hero-text p {
    font-size: 1rem;
    line-height: 1.7;
  }

  #start.section {
    width: min(94%, 720px);
    padding: 70px 0 80px;
  }

  #start h2 {
    font-size: 1.7rem;
    margin-bottom: 20px;
  }

  .summary-box,
  .guide-content {
    padding: 24px 18px;
    border-radius: 16px;
  }

  .summary-box h3,
  .guide-content h3 {
    font-size: 1.2rem;
  }

  .guide-content h3 {
    margin-top: 32px;
  }

  .guide-content h4 {
    font-size: 1rem;
  }

  .guide-content p,
  .guide-content li,
  .summary-box li {
    font-size: 0.97rem;
    line-height: 1.85;
  }

  .guide-content .rank-line,
  .guide-content .mini-box {
    padding: 14px 14px;
    border-radius: 10px;
  }
}