/***************
섹션1::통계
***************/
#merit .w-box img { width: 160px; margin: 0 auto; }
h1.ab-big-typo { position: absolute; left: 0; bottom: 0; z-index: 111; font-weight: 900;line-height:1;font-size:10rem; letter-spacing: 1rem; width: 100vw; margin-left: calc(-50vw + 50%); text-align: center; color: #ffffff; text-shadow: 0 2px 6px rgba(0, 0, 0, 0.15); }
h1.ab-big-typo::before { content: attr(data-text);position: absolute; inset: 0; z-index: -1; color: black}
.tri-images { position: relative; height: 576px; }
.tri-images img { border-radius: 24px; }
#s1 .el-01 { position: absolute; top: 205px; left: 5%; width: 320px; z-index: 1}
@media (max-width:992px) {
    #s1 .el-01 { width: 100px; top: 0; left: 30px }
    #main-container h1.ab-big-typo{ font-size: 5.2rem !important; letter-spacing: 0; line-height: 1;}
    #merit .cols-2 .item{width:100%;min-width:100%}
}

/***************
섹션2::비용
***************/
#s2 .w-box.box-1 p { font-size: 28px; margin-top: 12px}
#s2 .item h5 span { font-size: 36px}
#s2 .item h5 { text-align: center; line-height: 1; display: flex; justify-content: center; align-items: center; margin-bottom: 37px}
#s2 .item { padding: 40px 20px}
#s2 .card-hori ul { max-width: 80%; margin: 20px auto 0}
@media (max-width:992px) {
 #s2 .item h5 span { font-size: 24px }
 #s2 .item h5 { margin-bottom: 10px }
 #s2 .card-hori ul { max-width: 100%; margin: 10px auto 0 }
 #s2 .w-box.box-1 p { font-size: 16px }
}

/***************
섹션3::일정
***************/
#s3 .card-hori { margin-top: 60px}
#s3 .item p { font-size: 24px}
#s3 .visual-box { align-items: start; padding: 40px 60px 80px 110px; background-color: var(--c9); margin-top: 0}
#s3 .visual-box .bar { position: absolute; bottom: 0; width: 100%; background-color: var(--c1); color: #fff; padding: 16px 20px 16px 109px; left: 0}
#s3 .visual-box .bar p { font-size: 24px; color: #fff; font-weight: 700; margin-bottom: 0}
#s3 .visual-box { overflow: hidden}
#s3 .visual-box .ab-el { position: absolute; right: 7%; height: 100%; bottom: 0}
#s3 .visual-box h3 { margin-bottom: 19px}
#s3 .visual-box p { font-size: 24px; line-height: 1.5; font-weight: 700}
#s3 .visual-box>.d-flex { margin-bottom: 51px}
@media (max-width:992px) {
 #s3 .visual-box { padding: 30px 20px }
 #s3 .visual-box .bar { position: relative; padding: 5px 10px; text-align: center }
 #s3 .visual-box .ab-el { height: 132px; right: 0; top: -15px }
 #s3 .visual-box p { font-size: 17px !important }
}

/***************
섹션::프로그램구성01
***************/
#s4 .item { padding: 40px}
#s4 .item .img { height: 320px; margin-bottom: 24px}
#s4 .item h4 { margin-bottom: 0}
#s4 .item p { font-size: 24px}
#s4 .img img { width: 100%; height: 100%; object-fit: cover}
@media (max-width:992px) {
 #s4 .item { padding: 30px 14px }
 #s4 .item .img { height: 180px; margin-bottom: 12px }
 #s4 .item h3 { font-size: 26px !important; margin-bottom: 12px }
 #s4 .item p { font-size: 18px !important }
}

/***************
섹션::부스트
***************/
#s5 .item-1 { padding-left: 192px}
#s5 .item-1 img { height: 130px; width: 100%; object-fit: cover}
#s5 .conts { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: start}
#s5 .item-1 .conts>.d-flex { width: calc(50% - 24px); align-items: start; flex-direction: column}
#s5 .item:nth-child(odd) .circle { top: 5%; left: 5%}
#s5 .item:nth-child(even) .circle { top: 5%; right: 5%}
#s5 .item-2 .img { width: 100%; display: flex}
#s5 .item-2 .img img { width: 50%}
#s5 .item-3 .img { position: absolute; right: 0; top: 0; top: 0; height: 100%; max-width: 40%}
#s5 .item-3 .img img { width: 100%; height: 100%}
#s5 .item-3 .img { position: absolute; right: 0; top: 0; top: 0; height: 100%; max-width: 40%}
#s5 .item-3 .img img { width: 100%; height: 100%}
#s5 .item-3 .conts { padding-left: 108px}
#s5 .item-3 .conts ul { padding-left: 0}
#s5 .item-4 .img { width: 219px}
#s5 .item-4 table { margin-bottom: 20px}
#s5 .item-4 table thead th { background: #f5f5f5; font-size: 20px; text-align: center}
#s5 .item-4 table tbody td { background: #fff; text-align: center}
#s5 .check { width: 100%}
#s5 .check p { padding-left: 0; text-align: left}
@media (max-width:992px) {
 #s5 .item-1 { padding: 30px 20px }
 #s5 .item-3 .img { position: relative; width: 100%; max-width: 100% }
 #s5 .item-3 .conts { padding-left: 0 }
 #s5 .item-3 .conts>.text-left { flex-direction: column }
 #s5 .item-4 .pl-60 { padding-left: 0 !important; flex-basis: 100% }
 #s5 .item-4 table thead th { font-size: 17px !important; letter-spacing: -1px }
 #s5 .item-4 .text-left { flex-direction: column; width: 100% }
 #s5 .item-4 .img { margin: 0 auto }
 #s5 .item-4 .text-left h3 { text-align: center !important; margin-top: 13px; margin-bottom: 10px !important }
 #s5 .item-4 .text-left p { text-align: center; margin-top: 0 }
 #s5 ul li { padding-left: 28px }
 #s5 ul li::before { top: 2px; font-size: 16px }
 #s5 .check p { font-size: 16px !important }
}

/***************
섹션::스케쥴
***************/
#s6 table th { text-align: center; font-size: 22px; background: var(--c5); padding: 14px 12px}
#s6 table td { font-size: 20px; line-height: 1.5; font-weight: 500; color: #222}
#s6 table tr th:first-child { text-align: center}
#s6 table tbody tr td:first-child { background-color: var(--c6)}
#s6 table tbody tr td { padding: 22px 18px; background: #fff; border-right: 1px solid #dedede}

/**/
.justify-img>div img { object-fit: cover; width: 100%; height: 100%; }
.justify-img>div { aspect-ratio: 4 / 3; flex: 1; }
.justify-img { flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
#activity .cols-2 .img { aspect-ratio: 4 / 3; height: 400px; overflow: hidden; }
#activity .cols-2 .img img { object-fit: cover; height: 100%}

/***************
섹션::통계
***************/
#s8 .card-hori .item { padding: 60px 40px}
#s8 .card-hori h3 { text-align: center; margin-bottom: 24px}
#s8 .card-hori p,#s8 .card-hori li { color: #111}
#s8 .card-hori .item-1 .img { display: flex; justify-content: space-between; gap: 24px}
#s8 .card-hori .item-1 .img img { width: calc(50% - 12px) !important; display: flex; flex: 1; max-width: calc(50% - 12px) !important}
#s8 .card-hori .item .img { width: 100%; overflow: hidden; margin-bottom: 30px}
#s8 .card-hori .item .img img { width: 100%; height: 100%; border-radius: 12px; object-fit: cover}
#s8 .card-hori .item-5 .img+.img { display: flex; gap: 12px; margin-bottom: 0}
#s8 .card-hori .item-5 .img:nth-of-type(1) { margin-bottom: 12px}
@media (max-width:992px) {
 #s8 .card-hori .item { padding: 30px 20px }
 #s8 .card-hori .item-5 .img+.img img { width: 49% }
}

/***************
섹션::참여절차
***************/
#s9 .num span { background: var(--c3)}
#s9 p,#s9 li { font-size: 24px; color: #555}
@media (max-width:992px) {
 #s9 p,#s9 li { font-size: 18px }
}

/***************
섹션::참여절차
***************/
@media (max-width:992px) {
 #s10 .w-box { padding: 30px 20px }
}

/***************
섹션::자주묻는질문
***************/
@media (max-width:992px) {
 #s10 .w-box { padding: 30px 20px }
}

/* ------------------------------------------------
전체 섹션 래퍼 및 배경 (따뜻한 햇살 느낌)
------------------------------------------------ */
.royal-system-section { position: relative; max-width: 1200px; margin: 0 auto; padding: 2rem; display: flex; flex-direction: column; gap: 6rem; z-index: 1; }

/* 은은한 햇살 그라데이션 원형 */
.bg-glow { position: absolute; width: 600px; height: 600px; background: radial-gradient(circle, rgba(217, 119, 6, 0.08) 0%, rgba(252, 250, 248, 0) 70%); top: 5%; left: 50%; transform: translateX(-50%); z-index: 0; pointer-events: none; }

/* ------------------------------------------------
    상단: 궤도 UI (Left) + 콘텐츠 패널 (Right)
------------------------------------------------ */
.top-container { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; min-height: 500px; position: relative; z-index: 2; }

/* -- 궤도(Orbit) 시스템 디자인 -- */
.orbit-wrapper { position: relative; width: 100%; height: 500px; display: flex; justify-content: center; align-items: center; }

/* 중앙 코어 (Royal Blue & Gold) */
.orbit-center { position: absolute; width: 140px; height: 140px; background: linear-gradient(135deg, var(--primary), #312e81); border: 2px solid rgba(217, 119, 6, 0.3); border-radius: 50%; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; box-shadow: 0 0 30px rgba(30, 58, 138, 0.2), inset 0 0 15px rgba(255, 255, 255, 0.1); z-index: 10; animation: pulseGlow 3s infinite alternate; }
@keyframes pulseGlow {
 0% { box-shadow: 0 0 20px rgba(30, 58, 138, 0.2), inset 0 0 10px rgba(255, 255, 255, 0.1); }
 100% { box-shadow: 0 0 40px rgba(30, 58, 138, 0.5), inset 0 0 20px rgba(255, 255, 255, 0.3); }
}
.orbit-center span { font-size: 1.1rem; font-weight: 800; letter-spacing: 1px; color: white; line-height: 1.2; }
.orbit-center small { font-size: 0.75rem; color: rgba(255, 255, 255, 0.8); margin-top: 4px; }

/* 회전하는 궤도선 */
.orbit-track { position: absolute; width: 0; height: 0; top: 50%; left: 50%; transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1); }

/* 시각적인 점선 궤도 원 (고급스러운 네이비 점선) */
.orbit-ring-visual { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: calc(var(--orbit-radius) * 2); height: calc(var(--orbit-radius) * 2); border: 1px dashed rgba(30, 58, 138, 0.2); border-radius: 50%; pointer-events: none; }

/* 궤도를 도는 과목 위성들 (화이트/크림톤) */
.satellite { position: absolute; width: 90px; height: 90px; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(8px); border: 1px solid rgba(30, 58, 138, 0.1); border-radius: 50%; display: flex; justify-content: center; align-items: center; font-weight: 700; font-size: 1.1rem; color: var(--text-muted); cursor: pointer; transition: all 0.4s ease; box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05); }
.satellite:hover { border-color: var(--accent); color: var(--primary); box-shadow: 0 0 15px rgba(217, 119, 6, 0.2); }
.satellite.active { background: var(--primary); color: white; border-color: var(--primary); box-shadow: 0 10px 30px rgba(30, 58, 138, 0.3); width: 100px; height: 100px; font-size: 1.2rem; }

/* -- 동적 콘텐츠 패널 (Right) -- */
.content-display { position: relative; border: 1px solid rgba(0, 0, 0, 0.05); border-radius: 32px; padding: 3rem; min-height: 400px; display: flex; flex-direction: column; justify-content: center; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.08); overflow: hidden; }

/* 우측 배경 이미지와 좌측 텍스트 영역을 부드럽게 분리하는 그라데이션 오버레이 */
.content-display::before { content: ''; position: absolute; inset: 0; background: linear-gradient(to right, rgba(255, 255, 255, 0.95) 40%, rgba(255, 255, 255, 0.3) 100%); z-index: 1; pointer-events: none; }

/* 크로스페이드 되는 배경 이미지 */
.content-bg-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 0.8s ease, transform 3s ease; z-index: 0; 
/* 밝은 톤에 맞춰 필터(어둡게 처리) 제거, 선명한 이미지 노출 */
}
.content-bg-img.active { opacity: 1; transform: scale(1.05); }
.content-item { position: absolute; top: 0; left: 0; width: 100%; height: 100%; padding: 3rem; display: flex; flex-direction: column; justify-content: center; opacity: 0; visibility: hidden; transform: translateY(20px); transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1); z-index: 2; 
/* 오버레이보다 위에 위치 */
}
.content-item.active { opacity: 1; visibility: visible; background: inherit; transform: translateY(0); }
.content-badge { align-self: flex-start; background: rgba(217, 119, 6, 0.1); color: var(--accent); padding: 0.5rem 1rem; border-radius: 50px; font-size: 0.85rem; font-weight: 700; margin-bottom: 1rem; border: 1px solid rgba(217, 119, 6, 0.2); }
.content-title { font-size: 2.5rem; font-weight: 800; margin-bottom: 1rem; color: var(--primary); }
.content-desc { font-size: 1.15rem; line-height: 1.7; color: var(--text-muted); word-break: keep-all; max-width: 85%; 
/* 우측 배경 이미지가 보일 여백 확보 */
}
.content-desc strong { color: var(--text-main); }

/* ------------------------------------------------
하단: 4주간의 혁명 (Impact 영역)
------------------------------------------------ */
.impact-container { background: #ffffff; border-top: 4px solid var(--primary); border-radius: 40px; padding: 4rem; box-shadow: 0 30px 60px rgba(0, 0, 0, 0.05); position: relative; z-index: 2; }
.impact-header { text-align: center; margin-bottom: 3rem; }
.impact-header h2 { font-size: 2.8rem; font-weight: 800; background: linear-gradient(to right, var(--primary), #4338ca); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 1rem; }
.impact-header p { font-size: 1.2rem; color: var(--text-muted); max-width: 800px; margin: 0 auto; word-break: keep-all; line-height: 1.6; }

/* 체크리스트 2단 그리드 */
.checklist-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 3rem; }
.check-item { background: #f8fafc; border: 1px solid #e2e8f0; padding: 1.5rem 2rem; border-radius: 16px; display: flex; align-items: center; gap: 1rem; transition: transform 0.3s ease, background 0.3s ease; }
.check-item:hover { transform: translateY(-5px); background: #fffbeb; border-color: rgba(217, 119, 6, 0.3); }
.check-icon { color: var(--accent); font-size: 1.5rem; font-weight: 900; }
.check-text { font-size: 1.1rem; font-weight: 500; color: var(--text-main); }
.check-text strong { color: var(--accent); font-weight: 800; }

/* 결론 텍스트 */
.impact-footer { text-align: center; border-top: 1px dashed rgba(0, 0, 0, 0.1); padding-top: 3rem; }
.impact-footer p { font-size: 1.1rem; line-height: 1.8; color: var(--text-muted); margin-bottom: 1.5rem; word-break: keep-all; }
.highlight-box { display: inline-block; background: rgba(30, 58, 138, 0.05); border: 1px solid rgba(30, 58, 138, 0.1); padding: 1rem 2rem; border-radius: 50px; font-size: 1.2rem; font-weight: 700; color: var(--primary); }

/* ------------------------------------------------
반응형 디자인 (Mobile)
------------------------------------------------ */
@media (max-width:992px) {
 :root { --orbit-radius: 130px; 
/* 모바일에서는 궤도 크기 축소 */
 }
 .top-container { grid-template-columns: 1fr; gap: 2rem; }
 .orbit-wrapper { height: 380px; }
 .orbit-center { width: 100px; height: 100px; }
 .orbit-center span { font-size: 0.9rem; }
 .satellite { width: 70px; height: 70px; font-size: 0.9rem; }
 .satellite.active { width: 80px; height: 80px; font-size: 1rem; }
 .content-display { min-height: 350px; padding: 2rem; }
 .content-display::before { background: linear-gradient(to right, rgba(255, 255, 255, 0.95) 50%, rgba(255, 255, 255, 0.6) 100%); }
 .content-desc { max-width: 100%; }
 .content-title { font-size: 2rem; }
 .checklist-grid { grid-template-columns: 1fr; }
 .impact-container { padding: 2rem; }
 .impact-header h2 { font-size: 2rem; }
}

/**********
수학섹션
**********/
.math-section { max-width: 1000px; margin: 0 auto; position: relative;}