/* =========================================================
   research.ebiweb.co.kr — 메인(/) 페이지 전용 스타일
   공통 변수·base·헤더·푸터는 common.css 에 있음 (먼저 로드됨)
   모든 선택자는 .index 로 스코프 (body class="index") → common과 충돌 방지
   ========================================================= */

/* ---------- 페이지 배경 (메인 고유) ---------- */
body.index:before { content: ""; position: fixed; inset: 0; z-index: -2; background: radial-gradient(circle at 12% 14%, rgba(226,220,238,.72), transparent 34%), radial-gradient(circle at 88% 18%, rgba(197,214,239,.62), transparent 38%), radial-gradient(circle at 52% 78%, rgba(222,226,239,.72), transparent 40%), linear-gradient(180deg, #F4F5F8 0%, #EEF0F5 100%); }
body.index:after { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; background: linear-gradient(115deg, rgba(255,255,255,.28), rgba(255,255,255,0) 36%, rgba(255,255,255,.18) 72%, rgba(255,255,255,0)); filter: blur(18px); }

.index main>section + section {margin-top:100px;}

/* ---------- hero ---------- */
.index .hero { display: flex; min-height: calc(100vh - 80px); justify-content: center; align-items: center; text-align: center; position: relative; overflow: hidden; }
.index .hero:before { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, rgba(255,255,255,.34), rgba(255,255,255,0) 34%, rgba(255,255,255,.22) 66%, rgba(255,255,255,0)); filter: blur(18px); pointer-events: none; }
.index .hero:after { content: ""; position: absolute; width: 760px; height: 430px; left: 50%; top: 52%; transform: translate(-50%,-50%); border-radius: 48%; background: rgba(255,255,255,.24); filter: blur(54px); pointer-events: none; }
.index .hero .wrap { position: relative; z-index: 1; }
.index .eyebrow { font-size: 14px; line-height: 1.3; font-weight: 800; color: var(--brand-eyebrow); letter-spacing: .08em; }
.index .hero h1 { font-size: clamp(28px,5vw,50px); line-height: 1.12; letter-spacing: -.03em; margin: 16px 0 22px; font-weight: 800; color: var(--brand-deep); background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.index .hero h1 span { display: block; }
.index .hero p { font-size: 18px; line-height: 1.4; color: #808596; margin: 0 auto; }

/* ---------- service cards ---------- */
.index .service-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 38px; }
.index .service-card { min-height: 300px; border-radius: var(--radius-lg); padding: var(--pad-box); position: relative; display: flex; flex-direction: column; justify-content: space-between; color: var(--ink); background: var(--glass); backdrop-filter: blur(22px) saturate(120%); -webkit-backdrop-filter: blur(22px) saturate(120%); box-shadow: var(--shadow-soft), inset 0 1px 0 rgba(255,255,255,.76); transform: translateZ(0); transition: transform .28s ease, box-shadow .28s ease, background-color .28s ease; text-align:center; align-items:center; }
.index .service-card:hover { transform: translateY(-8px); background: rgba(255,255,255,.60); box-shadow: 0 30px 80px rgba(84,94,136,.18), inset 0 1px 0 rgba(255,255,255,.84); }
.index .service-card:before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(135deg, rgba(255,255,255,.50), rgba(255,255,255,.06) 42%, rgba(255,255,255,.14)); pointer-events: none; }
.index .service-card h3 { font-size: clamp(18px,1.5vw,24px); line-height: 1.2; letter-spacing: -.03em; font-weight:600; margin: 0; position: relative; z-index: 2; }
.index .service-card p { font-size: 16px; line-height: 1.5; color: #666C7D; opacity: 1; margin: 12px 0 0; position: relative; z-index: 2; }
.index .service-card.lab { background: linear-gradient(145deg, rgba(218,223,247,.72), rgba(244,241,250,.52)); }
.index .service-card img { width:50%; height:auto; aspect-ratio:1/1; object-fit:contain; }
.index .service-card.center { background: linear-gradient(145deg, rgba(214,230,248,.72), rgba(242,245,250,.52)); }
.index .service-card.dept { background: linear-gradient(145deg, rgba(220,237,233,.72), rgba(243,246,247,.52)); }
.index .service-card .art { position: absolute; right: clamp(20px, 4vw, 40px); bottom: clamp(20px, 4vw, 40px); font-size:clamp(60px, 4vw, 80px); line-height: 1; z-index: 1; pointer-events: none; opacity: .9; }
.index .service-card.lab .art { color: rgba(143,152,217,.55); }
.index .service-card.center .art { color: rgba(169,188,229,.62); }
.index .service-card.dept .art { color: rgba(169,206,200,.68); }
.index .service-card .arrow { margin-top:40px; width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.72); color: #2C3040; border: 1px solid rgba(255,255,255,.80); box-shadow: 0 10px 28px rgba(75,85,125,.12); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); position: relative; z-index: 3; }

/* ---------- quick ---------- */
.index .quick { margin-top:0; }
.index .quick h2, .index .section-title { font-size: clamp(24px,2vw,32px); line-height: 1.3; letter-spacing: -.03em; margin: 0; }
.index .quick-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 16px; margin-top:30px; }
.index .quick-item { border: 1px solid rgba(255,255,255,.68); border-radius: var(--radius-md); padding: var(--pad-box); background: rgba(255,255,255,.48); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); box-shadow: 0 14px 38px rgba(82,92,130,.08), inset 0 1px 0 rgba(255,255,255,.72); transition: .25s; }
.index .quick-item:hover { transform: translateY(-4px); background: rgba(255,255,255,.64); box-shadow: 0 18px 42px rgba(88,98,138,.13); }
.index .quick-icon { width: 56px; height: 56px; border-radius: var(--radius-md); display: grid; place-items: center; margin-bottom: 18px; font-size: 25px; box-shadow: inset 0 1px 0 rgba(255,255,255,.70); }
.index .quick-item:nth-child(1) .quick-icon { background: #E6EEF9; }
.index .quick-item:nth-child(2) .quick-icon { background: #E9F3F1; }
.index .quick-item:nth-child(3) .quick-icon { background: #F6F0E5; }
.index .quick-item:nth-child(4) .quick-icon { background: #EEEAF8; }
.index .quick-item:nth-child(5) .quick-icon { background: #F6EAF0; }
.index .quick-item strong { display: block; font-size: 17px; }
.index .quick-item span { display:inline-block; font-size: 14px; color: var(--muted); line-height: 1.3;}

/* ---------- projects ---------- */
.index .projects { }
.index .projects-layout { display: grid; grid-template-columns: .6fr 1.4fr; gap: 100px; align-items: start; }
.index .projects-copy { position: sticky; top: 120px; }
.index .projects-copy p { color: var(--muted); margin: 0 0 26px; }
.index .btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 13px 20px; border-radius: 999px; font-weight: 600; border: 1px solid rgba(63,68,86,.28); cursor: pointer; background: rgba(255,255,255,.52); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.index .btn.fill { padding: 15px 30px; line-height:1; font-size: clamp(16px,1.5vw,18px); font-weight:600; background: linear-gradient(135deg,#5E69C2,#525CB6); color: #fff; border-color: transparent; box-shadow: 0 12px 28px rgba(108,114,170,.22); }
.index .btn.fill:hover { background: linear-gradient(135deg,#818ACF,#737CC1); }
.index .project-list { position: relative; }
.index .project-row { display: flex; justify-content: space-between; gap: 20px; padding: 24px 4px; border-bottom: 1px solid rgba(116,126,160,.14); align-items: center; transition: color .15s ease; }
.index .project-row:hover strong { color: #7079C5; }
.index .project-row strong { font-size: clamp(16px, 1.5vw,18px); font-weight:600; flex: 1; line-height:1.3; display:inline-block; }
.index .project-row span { font-size: 14px; line-height: 1.3; color: var(--muted); }
.index .project-row::after { content: "↗"; flex: 0 0 auto; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: rgba(255,255,255,.62); border: 1px solid rgba(255,255,255,.72); color: var(--muted); font-size: 16px; box-shadow: 0 8px 20px rgba(82,92,130,.08); transition: background-color .15s ease,color .15s ease,border-color .15s ease; }
.index .project-row:hover::after { background: #8F98D9; border-color: transparent; color: #fff; }
.index .project-row:nth-last-child(3) { opacity: .68; }
.index .project-row:nth-last-child(2) { opacity: .42; }
.index .project-row:nth-last-child(1) { opacity: .18; }
.index .logos { overflow: hidden; margin-top: 100px; display: flex; flex-direction: column; gap: 16px; }
.index .logo-track { display: flex; gap: 16px; width: max-content; animation: index-marquee 30s linear infinite; }
.index .logo-track.reverse { animation-direction: reverse; }
.index .logo-pill { flex: 0 0 auto; min-width: 150px; padding: clamp(10px,1vw,17px) clamp(15px,1vw,22px); border: 1px solid rgba(255,255,255,.70); border-radius: 999px; background: rgba(255,255,255,.56); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 10px 28px rgba(82,92,130,.07); text-align: center; font-weight: 600; color: #666C7D; white-space: nowrap; }
.index .logo-pill:hover { background: #8F98D9; color: #fff; border-color: transparent; }

/* ---------- FAQ 카드뉴스 ---------- */
.index .faq-head { display: flex; justify-content: space-between; gap: 30px; margin-bottom:30px; }
.index .faq-head p { max-width: 540px; color: var(--muted); margin: 0; }
.index .faq-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.index .faq-card { display: block; color: inherit; border-radius: var(--radius-lg); overflow: hidden; background: rgba(255,255,255,.50); border: 1px solid rgba(255,255,255,.68); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); box-shadow: 0 16px 42px rgba(80,90,130,.08), inset 0 1px 0 rgba(255,255,255,.70); transition: transform .2s ease,box-shadow .2s ease; }
.index .faq-card:hover { transform: translateY(-4px); box-shadow: 0 20px 48px rgba(80,90,130,.13); }
.index .faq-card .visual { aspect-ratio:16/9; position: relative; padding: 20px; background-size: cover; background-position: center; background-repeat: no-repeat; }
.index .faq-card:nth-child(1) .visual { background-image: url(/images/main_guide1.webp); }
.index .faq-card:nth-child(2) .visual { background-image: url(/images/main_guide2.webp); }
.index .faq-card:nth-child(3) .visual { background-image: url(/images/main_guide3.webp); }
.index .faq-card:nth-child(4) .visual { background-image: url(/images/main_guide4.webp); }
.index .faq-body { padding: var(--pad-box); }
.index .faq-body small { display: inline-block; background: rgba(255,255,255,.72); border: 1px solid rgba(255,255,255,.76); border-radius: 999px; padding: 4px 9px; font-size: 14px; line-height: 1.3; font-weight: 750; margin-bottom: 10px; }
.index .faq-body h3 { font-size: 18px; font-weight:600; line-height: 1.45; letter-spacing: -.025em; margin: 0 0 10px; }
.index .faq-body p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.3; }

/* ---------- benefits ---------- */
.index .benefits { position: relative; overflow: hidden; background-color:#000; color: #fff; padding:120px 0; }
.index .benefits::before { content: ""; position: absolute; inset: 0; z-index: 0; background: url("/images/main_whyebi.webp") center / cover no-repeat; opacity: .3; pointer-events: none; }
.index .benefits > .wrap { position: relative; z-index: 1; }
.index .benefit-top { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: end; }
.index .benefit-top p { color: #C3C8D7; }
.index .numbers { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-top: 42px; }
.index .number-card { border-radius: var(--radius-md); background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.10); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); padding: var(--pad-box); box-shadow: inset 0 1px 0 rgba(255,255,255,.08); }
.index .number-card strong { display: block; font-size: clamp(24px,2vw,42px); line-height: 1; letter-spacing: -.02em; }
.index .number-card span { color: #C3C8D7; font-size: 14px; line-height: 1.3; }
.index .process { display: grid; grid-template-columns: repeat(5,1fr); gap: 14px; margin-top: 34px; list-style: none; padding: 0; }
.index .trust-points { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 0; padding: 0; list-style: none; }
.index .trust-points li { display: flex; align-items: center; gap: 8px; padding: 10px 16px; border: 1px solid rgba(255,255,255,.12); border-radius: 999px; background: rgba(255,255,255,.05); color: #D7DBEA; font-size: 14px; line-height: 1.3; font-weight: 600; letter-spacing: -.01em; }
.index .trust-points li::before { content: "✓"; color: #BBC4F3; font-weight: 800; }

/* 비교/차별화 표 */
.index .compare { }
.index .compare-table-wrap { margin-top: 30px; overflow-x: auto; }
.index .compare-table { width: 100%; min-width: 640px; border-collapse: separate; border-spacing: 0; background: rgba(255,255,255,.72); border: 1px solid rgba(143,152,217,.20); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-card); }
.index .compare-table th, .index .compare-table td { padding: 18px 20px; text-align: left; font-size: 15px; line-height: 1.5; border-bottom: 1px solid rgba(143,152,217,.14); word-break: keep-all; }
.index .compare-table thead th { background: #E7E9F4; color: var(--brand-deep); font-weight: 800; }
.index .compare-table thead th:first-child { background: #DCDFEE; color: var(--ink); }
.index .compare-table tbody th { width: 150px; background: rgba(143,152,217,.08); color: var(--ink); font-weight: 800; }
.index .compare-table tbody td:nth-child(2) { color: var(--brand-deep); font-weight: 700; }
.index .compare-table tbody td:last-child { color: var(--muted); }
.index .compare-table tr:last-child th, .index .compare-table tr:last-child td { border-bottom: 0; }
.index .step { border: 1px solid rgba(255,255,255,.10); border-radius: var(--radius-md); padding: var(--pad-box); min-height: 130px; background: rgba(255,255,255,.04); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.index .step em { display: block; font-style: normal; color: #BBC4F3; font-size: 14px; line-height: 1.3; font-weight: 800; }
.index .step strong { display: block; margin-top: 22px; }
.index .step span { font-size: 14px; line-height: 1.3; color: #B2B8C8; }

/* ---------- 고객 경험 여정 ---------- */
.index .journey { }
.index .journey-head { max-width: 760px; margin-bottom: 42px; }
.index .journey-head p { margin: 16px 0 0; color: var(--muted); font-size: 16px; line-height: 1.65; word-break: keep-all; }
.index .journey-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6,1fr); gap: 16px; }
.index .journey-step { border-radius: var(--radius-md); padding: 24px 20px; background: rgba(255,255,255,.55); border: 1px solid rgba(255,255,255,.70); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); box-shadow: 0 14px 38px rgba(82,92,130,.08), inset 0 1px 0 rgba(255,255,255,.72); }
.index .journey-no { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: var(--brand-fill); color: #fff; font-weight: 800; font-size: 15px; margin-bottom: 14px; }
.index .journey-step strong { display: block; font-size: 17px; letter-spacing: -.02em; margin-bottom: 8px; }
.index .journey-step p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.3; word-break: keep-all; }

/* ---------- FAQ 리스트 ---------- */
.index .faq-list-section { padding: 0;}
.index .faq-list-head { display: grid; grid-template-columns: .85fr 1.15fr; gap: 70px; align-items: start; margin-bottom: 34px; }
.index .faq-list-head p { margin: 0; color: var(--muted); }
/* FAQ 리스트 스타일은 common.css .faq-list 공용 사용 */

/* ---------- CTA ---------- */
.index .cta { margin-bottom:100px;}
.index .cta-box { border-radius: var(--radius-xl); background: linear-gradient(120deg,rgba(220,225,244,.62) 0%,rgba(218,232,247,.56) 40%,rgba(227,235,239,.52) 72%,rgba(240,225,232,.52) 100%); border: 1px solid rgba(255,255,255,.74); backdrop-filter: blur(24px) saturate(120%); -webkit-backdrop-filter: blur(24px) saturate(120%); box-shadow: var(--shadow-soft), inset 0 1px 0 rgba(255,255,255,.82); padding: var(--pad-box-lg); display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 40px; position: relative; overflow: hidden; }
.index .cta-box:after { content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%; background: rgba(143,152,217,.12); right: -70px; top: -90px; filter: blur(2px); }
.index .cta h2 { font-size: clamp(24px,2vw,32px); line-height: 1.25; letter-spacing: -.03em; margin: 0 0 12px; }
.index .cta p { margin: 0; color: var(--muted); line-height:clamp(1.3,1.6,1.6);}
.index .cta-actions { display: flex; gap: 12px; position: relative; z-index: 2; }
.index .cta .primary { background: var(--hot); color: #fff; border-color: transparent; box-shadow: 0 10px 26px rgba(185,118,151,.18); }

@keyframes index-marquee { to { transform: translateX(-50%); } }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .index main>section + section {margin-top:50px;}
  .index .quick-grid { grid-template-columns: repeat(3,1fr); }
  .index .faq-grid { grid-template-columns: repeat(2,1fr); }
  .index .process { grid-template-columns: repeat(3,1fr); }
  .index .journey-steps { grid-template-columns: repeat(3,1fr); }
}

@media (max-width: 768px) {
  .index .hero { min-height: auto; padding: 50px 0; }
  .index .hero p { font-size: 17px; }
  .index .service-cards { grid-template-columns: 1fr; }
  .index .service-card { min-height: 240px; }
  .index .quick-grid { grid-template-columns: repeat(1,1fr); }
  .index .quick-item { padding-right:80px; }
  .index .quick-icon {position:absolute; right:20px; top:20px;}
  .index .projects { }
  .index .projects-layout { grid-template-columns: 1fr; gap: 28px; }
  .index .projects-copy { position: static; }
  .index .project-row { display: block; padding:15px 60px 15px 0; position:relative;}
  .index .project-row * { word-break:keep-all; }
  .index .project-row span { display: block; margin-top: 5px; }
  .index .project-row::after {position:absolute; right:10px; top:15px; font-size:12px; width:24px; height:24px;}
  .index .faq-head { display: block; }
  .index .faq-grid { grid-template-columns: 1fr; }
  .index .journey-steps { grid-template-columns: repeat(2,1fr); }
  .index .spec-table th { width: 104px; }
  .index .benefit-top { grid-template-columns: 1fr; }
  .index .numbers, .index .process { grid-template-columns: 1fr; }
  .index .faq-list-head { grid-template-columns: 1fr; gap: 12px; }
  .index .cta-box { grid-template-columns: 1fr; }
  .index .cta-actions { flex-direction: column; }
  
}