/* =========================================================
   MAIN.CSS : LG15441644 메인 리뉴얼 전체 레이아웃
========================================================= */

body {
    margin: 0;
    padding: 0;
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
    color: #1f2937;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
}

/* =========================
   섹션 간격 및 배경 균형
========================= */
.knu-main > section:nth-child(even) {
    /* background-color: #f8fafc; */
}

.knu-main > section:nth-child(odd) {
    /* background-color: #ffffff; */
}

@media (max-width: 768px) {
    .knu-s00 {
        height: auto !important;
        min-height: 460px;
    }
}

#knuTop {
    background-color: #050a12 !important;
}

#knuWhy,
#knuStrength {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%) !important;
}

#knuBundle {
    background: linear-gradient(135deg, #0f2b4c 0%, #081628 100%) !important;
    color: #ffffff;
}

#knuBenefit {
    background: linear-gradient(180deg, #fffcf5 0%, #ffffff 100%) !important;
}

#knuConsultSection {
    background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%) !important;
}

#knuContactCta {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%) !important;
    color: #ffffff;
}

/* =========================
   HERO BASE (#knuTop)
========================= */
#knuTop { position: relative; background: #000; }
#knuTop .knu-hero-swiper,
#knuTop .knu-hero-slide {
    min-height: clamp(400px, 50vh, 540px);
}
#knuTop .knu-hero-slide {
    position: relative;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
}
#knuTop .knu-hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(110deg, rgba(8, 24, 20, .32), rgba(12, 22, 32, .24), rgba(5, 10, 18, .18));
}
#knuTop .knu-hero-content {
    position: relative;
    z-index: 10;
    color: #fff;
    max-width: 900px;
    padding: 108px 0 140px;
}
#knuTop .knu-hero-copy {
    position: relative;
    width: min(1200px, calc(100% - 48px));
    min-height: 380px;
    margin: 0 auto;
    padding: 40px 64px;
    overflow: hidden;
    isolation: isolate;
    border-radius: 28px;
    background: linear-gradient(100deg, rgba(0, 35, 38, .82), rgba(0, 70, 65, .48));
    box-shadow: 0 30px 80px rgba(0, 0, 0, .35);
}
#knuTop .knu-hero-copy::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(90deg, rgba(0, 20, 24, .86) 0%, rgba(0, 40, 44, .72) 42%, rgba(0, 80, 70, .22) 100%);
}
#knuTop .knu-hero-person {
    position: absolute;
    right: 2%;
    bottom: 0;
    z-index: 2;
    width: min(42%, 470px);
    pointer-events: none;
}
#knuTop .knu-hero-person picture,
#knuTop .knu-hero-person img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
}
#knuTop .knu-hero-text {
    position: relative;
    z-index: 4;
    width: min(560px, 52%);
    color: #fff;
}
@media (min-width: 1280px) {
    #knuTop .knu-hero-copy { width: min(1200px, calc(100% - 80px)); }
}
@media (min-width: 1025px) {
    #knuTop .knu-hero-swiper,
    #knuTop .knu-hero-slide { height: 700px; min-height: 700px; }
}
@media (max-width: 768px) {
    #knuTop .knu-hero-swiper,
    #knuTop .knu-hero-slide { min-height: 360px; height: 360px; }
    #knuTop .knu-hero-copy {
        width: calc(100% - 24px); min-height: auto; height: 320px;
        padding: 26px 18px 80px; border-radius: 20px;
        display: flex; align-items: flex-start; justify-content: center;
        background: linear-gradient(180deg, rgba(0, 35, 38, .88), rgba(0, 55, 50, .58));
    }
    #knuTop .knu-hero-copy::before {
        background: linear-gradient(180deg, rgba(0, 20, 24, .9) 0%, rgba(0, 35, 38, .75) 48%, rgba(0, 55, 50, .28) 100%);
    }
    #knuTop .knu-hero-text { width: 100%; max-width: 100%; text-align: center; z-index: 5; }
    #knuTop .knu-eyebrow { margin-bottom: 8px; padding: 6px 13px; font-size: 12px; line-height: 1.2; }
    #knuTop .knu-hero-text h2 { margin: 0 0 10px; font-size: 23px; line-height: 1.22; letter-spacing: -.04em; }
    #knuTop .knu-hero-text p { margin: 0 auto 14px; max-width: 92%; font-size: 13.5px; line-height: 1.5; }
    #knuTop .knu-hero-cta { display: flex; justify-content: center; gap: 8px; margin-top: 0; flex-wrap: nowrap; }
    #knuTop .knu-hero-person { right: 50%; bottom: -18px; transform: translateX(50%); width: min(68vw, 260px); opacity: .55; z-index: 2; }
    #knuTop .pc-title { display: none; }
    #knuTop .mo-title { display: block; }
}
@media (max-width: 480px) {
    #knuTop .knu-hero-swiper,
    #knuTop .knu-hero-slide { min-height: 320px; height: 320px; }
    #knuTop .knu-hero-copy { height: 300px; padding: 24px 16px 80px; }
    #knuTop .knu-hero-text h2 { font-size: clamp(20px, 3vw, 28px) !important; margin-bottom: 8px; }
    #knuTop .knu-hero-text p { font-size: 13px; line-height: 1.3; margin-bottom: 12px; }
    #knuTop .knu-hero-person { width: min(70vw, 240px); bottom: -20px; }
}
#knuTop .knu-eyebrow {
    display: inline-flex; margin-bottom: 18px; padding: 9px 18px;
    border: 1px solid rgba(255, 255, 255, .32); border-radius: 999px;
    background: rgba(255, 255, 255, .16); color: #fff; font-weight: 700;
}
#knuTop .knu-hero-text h2 {
    margin: 0 0 22px; color: #fff; font-size: clamp(38px, 3.2vw, 58px);
    line-height: 1.16; font-weight: 800; letter-spacing: -.04em;
    text-shadow: 0 4px 24px rgba(0, 0, 0, .65);
}
#knuTop .knu-hero-text p {
    color: rgba(255, 255, 255, .92); font-size: 18px; line-height: 1.75;
    text-shadow: 0 3px 16px rgba(0, 0, 0, .55);
}
#knuTop .pc-title { display: block; }
#knuTop .mo-title { display: none; }
#knuTop .knu-hero-cta { margin-top: 42px; display: flex; gap: 14px; }
#knuTop .swiper-button-prev,
#knuTop .swiper-button-next {
    width: 52px; height: 52px; border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .14); color: #fff;
}
#knuTop .knu-hero-pagination { bottom: 28px; }
#knuTop .knu-hero-slide:nth-child(3) .knu-hero-overlay { background: #ffffff !important; }

/* =========================
   공통 타이포그래피 보조
========================= */
h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: 800;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* =========================
   공통 아코디언 (FAQ 등)
========================= */
.knu-accordion {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.knu-accordion-item {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.28s ease;
}

.knu-accordion-item:hover {
    border-color: var(--knu-gold);
    box-shadow: 0 8px 24px rgba(15, 43, 76, 0.06);
}

.knu-accordion-header {
    width: 100%;
    padding: 24px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 19px;
    font-weight: 800;
    color: #1e293b;
    text-align: left;
}

.knu-accordion-header span.q-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: #eff6ff;
    color: #2563eb;
    font-weight: 900;
    margin-right: 14px;
}

.knu-accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    background: #f8fafc;
    border-top: 1px solid transparent;
}

.knu-accordion-item.active .knu-accordion-body {
    border-top-color: #e2e8f0;
}

.knu-accordion-content {
    padding: 24px 28px 28px 78px;
    font-size: 16px;
    line-height: 1.75;
    color: #475569;
}