/* =========================================
   VARIABLES & RESET
   ========================================= */
:root {
  /* White Sakura Theme Palette */
  --bg-paper: #ffffff;
  --bg-subtle: #f8f9fc;
  --bg-gray: #f2f4f6;
  --bg-dark: #1A1C20;
  
  --text-main: #191f28;   /* 吏꾪븳 李⑥퐳 */
  --text-sub: #4e5968;    /* 遺��쒕윭�� �뚯깋 */
  --text-muted: #8b95a1;
  
  /* Accents */
  --sakura: #ff4f93;      /* Primary Pink */
  --sakura-dim: rgba(255, 79, 147, 0.1);
  --sakura-glow: rgba(255, 79, 147, 0.4);
  --line: rgba(0, 0, 0, 0.06);

  /* Layout */
  --max-w: 1100px;
  --header-h: 70px;
  --radius-lg: 24px;
  --radius-md: 16px;
  
  /* Fonts */
  --font-main: 'Pretendard', -apple-system, sans-serif;
  --font-eng: 'Montserrat', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-serif: 'Noto Serif KR', serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background-color: var(--bg-paper);
  color: var(--text-main);
  line-height: 1.6;
  word-break: keep-all;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: 0.2s; }
button { cursor: pointer; border: none; font-family: inherit; }
ul { list-style: none; }

/* Utilities */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; position: relative; }
.text-center { text-align: center; }
.pc-only { display: none; }
.mob-only { display: block; }
@media (min-width: 992px) {
  .pc-only { display: flex; }
  .mob-only { display: none; }
}

/* Typography Utils */
.eng { font-family: var(--font-eng); letter-spacing: -0.01em; }
.mono { font-family: var(--font-mono); letter-spacing: -0.03em; }
.serif { font-family: var(--font-serif); }
.text-sakura { color: var(--sakura); }

/* Animation Utils */
.reveal { opacity: 0; transform: translateY(30px); transition: 0.8s cubic-bezier(0.2, 0.8, 0.2, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }
@keyframes blink { 50% { opacity: 0.5; } }
.blink { animation: blink 1.5s infinite; }


/* =========================================
   BACKGROUND & HEADER
   ========================================= */
#flowCanvas {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  z-index: -1; pointer-events: none; opacity: 0.5;
}

.navbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--header-h);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  z-index: 1000;
  display: flex; align-items: center;
}
.nav-inner { width: 100%; display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: var(--font-eng); font-weight: 800; font-size: 1.3rem; display: flex; align-items: center; gap: 8px; color: var(--text-main); }
.logo span { width: 10px; height: 10px; background: var(--sakura); border-radius: 50%; box-shadow: 0 0 12px var(--sakura); }

.nav-links { gap: 32px; align-items: center; }
.nav-links a { font-weight: 600; font-size: 0.95rem; color: var(--text-sub); }
.nav-links a:hover { color: var(--sakura); }

.nav-btn {
  background: var(--text-main); color: #fff !important;
  padding: 10px 24px; border-radius: 50px; font-size: 0.9rem;
  transition: 0.3s;
}
.nav-btn:hover { background: var(--sakura); transform: translateY(-2px); }

.menu-btn { width: 30px; height: 20px; position: relative; background: none; }
.menu-btn span { position: absolute; left: 0; width: 100%; height: 2px; background: #000; top: 9px; }
.menu-btn span:first-child { top: 0; }
.menu-btn span:last-child { top: 18px; }


/* =========================================
   SECTIONS
   ========================================= */
.section { padding: 120px 0; border-bottom: 1px solid var(--line); }
.bg-subtle { background: var(--bg-subtle); }
.bg-dark { background: var(--bg-dark); color: #fff; }
.bg-light { background: #f9f9f9; }

.sec-subtitle {
  display: inline-block; font-family: var(--font-mono); font-size: 0.85rem; 
  font-weight: 700; color: var(--sakura); margin-bottom: 12px;
}
.sec-title {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; margin-bottom: 24px; line-height: 1.25;
}
.sec-desc { font-size: 1.15rem; color: var(--text-sub); max-width: 650px; margin-bottom: 40px; }


/* =========================================
   ALTERNATIVE /* =========================================
   FOURTH HERO: TIMELINE GUARDIAN
   ========================================= */
.hero-timeline {
  min-height: 100vh;
  padding: 140px 0 100px;
  background: #fff;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.timeline-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.logic-badge {
  display: inline-block;
  font-family: var(--font-eng);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--sakura);
  padding: 5px 12px;
  border: 1px solid rgba(255, 79, 147, 0.3);
  border-radius: 4px;
  margin-bottom: 20px;
}

.timeline-title {
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
}

.timeline-title span {
  color: var(--sakura);
  background: linear-gradient(to right, var(--sakura), #ff8fb1);
  -webkit-background-clip: text; /* 크롬, 사파리 등 구형 브라우저 호환용 */
  background-clip: text;         /* 표준 속성 (이걸 추가하면 경고가 사라집니다!) */
  -webkit-text-fill-color: transparent;
}

.timeline-desc {
  font-size: 1.2rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 45px;
}

.timeline-cta { display: flex; gap: 20px; align-items: center; }

.btn-timeline-main {
  background: #1A1C20;
  color: #fff;
  padding: 18px 35px;
  border-radius: 12px;
  font-weight: 700;
  transition: 0.3s;
}

.btn-timeline-main:hover {
  background: var(--sakura);
  transform: translateY(-3px);
}

.btn-timeline-sub {
  color: var(--text-muted);
  text-decoration: underline;
  font-weight: 600;
}

/* 타임라인 비주얼 디자인 */
.timeline-visual {
  position: relative;
  height: 500px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.central-line {
  position: absolute;
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, rgba(255, 79, 147, 0.2), transparent);
}

.core-shield-box {
  background: #fff;
  border: 2px solid #1A1C20;
  padding: 20px 30px;
  border-radius: 20px;
  text-align: center;
  z-index: 5;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.core-shield-box strong { display: block; font-size: 1.2rem; color: #1A1C20; }
.core-shield-box span { font-size: 0.8rem; color: var(--sakura); font-weight: 700; }

.data-node {
  position: absolute;
  background: #fff;
  padding: 15px 20px;
  border-radius: 15px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.05);
  display: flex;
  align-items: center;
  gap: 15px;
  border: 1px solid #f0f0f0;
}

.node-left { left: 0; top: 20%; }
.node-right { right: 0; bottom: 20%; }

.node-icon { font-size: 1.5rem; }
.node-val { display: block; font-size: 1.4rem; font-weight: 800; color: var(--sakura); }
.node-lab { font-size: 0.8rem; color: #888; font-weight: 600; }

.pulse-gentle { animation: pulse-gentle 2s infinite; }
@keyframes pulse-gentle {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* 모바일 대응 */
@media (max-width: 992px) {
  .timeline-grid { grid-template-columns: 1fr; text-align: center; }
  .timeline-cta { justify-content: center; }
  .timeline-visual { height: 400px; }
  .node-left, .node-right { position: static; margin-bottom: 20px; }
  .timeline-draw { display: flex; flex-direction: column; align-items: center; }
  .central-line { display: none; }
}
/* =========================================
   STORY & PROBLEM
   ========================================= */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.quote-card {
  background: white; padding: 48px; border-radius: var(--radius-lg);
  border: 1px solid rgba(0,0,0,0.04); box-shadow: 0 20px 40px rgba(0,0,0,0.04);
}
.quote-text { font-size: 1.4rem; font-weight: 600; line-height: 1.5; color: var(--text-main); }
.indi-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: #E8F5E9; color: #2E7D32; padding: 8px 16px; border-radius: 8px; font-weight: 700; font-size: 0.9rem;
}

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; margin-top: 40px; }
.card { padding: 40px 30px; border-radius: 20px; transition: 0.3s; }
.card.bg-gray { background: var(--bg-gray); border: 1px solid transparent; }
.card:hover { background: #fff; box-shadow: 0 20px 40px rgba(0,0,0,0.08); border-color: var(--line); transform: translateY(-5px); }
.emoji { font-size: 3rem; margin-bottom: 20px; }
.card h3 { font-size: 1.3rem; margin-bottom: 10px; font-weight: 700; }
.card p { color: var(--text-sub); font-size: 0.95rem; }


/* =========================================
   TECH SPECS (DARK)
   ========================================= */
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 30px; }
.tech-item {
  background: rgba(255,255,255,0.05); padding: 30px; border-radius: 16px; border: 1px solid rgba(255,255,255,0.1);
}
.tech-num {
  font-family: var(--font-mono); font-size: 2rem; color: var(--sakura); opacity: 0.5; font-weight: 800; margin-bottom: 10px;
}
.tech-item h3 { font-size: 1.3rem; margin-bottom: 10px; color: #fff; }
.tech-item p { color: #aaa; font-size: 0.9rem; }


/* =========================================
   HANDOFF & REVIEW
   ========================================= */
/* =========================================
   HANDOFF & REVIEW (IMPACT VER.)
   ========================================= */

/* 컨테이너 설정 */
.network-visual-impact {
  position: relative;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
}

/* 노드 공통 스타일 */
.user-node {
  width: 90px;
  height: 120px;
  text-align: center;
  font-weight: 700;
  z-index: 2;
  background: white;
  border-radius: 16px;
  padding: 15px 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: center;
  font-size: 0.9rem;
}

/* 출발 노드 위치 */
.source-node {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

/* 타겟 노드들 위치 크기 */
.target-nodes {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px 0;
}
.target-node {
  height: 100px; /* 높이 약간 조절 */
}

/* SVG �곌껐�� �ㅽ��� */
.connect-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}
.path-line {
  stroke: var(--sakura);
  stroke-width: 3;
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
  animation: drawPath 2.5s ease-in-out infinite;
  opacity: 0.3;
}
@keyframes drawPath {
  0% { stroke-dashoffset: 400; }
  50% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -400; }
}

/* �⑦궥 怨듯넻 �ㅽ��� */
.packet {
  position: absolute;
  padding: 8px 16px;
  background: var(--sakura);
  color: white;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.85rem;
  z-index: 3;
  box-shadow: 0 0 20px var(--sakura-glow);
  top: 50%;
  left: 45px; /* 異쒕컻�� 以묒븰 */
  transform: translate(-50%, -50%);
  opacity: 0;
}

/* �⑦궥 1: 踰뺣쪧�꾨Ц媛��� (�꾨줈) */
.p1 {
  animation: transfer-impact-1 2.5s cubic-bezier(0.25, 0.8, 0.25, 1) infinite;
}
@keyframes transfer-impact-1 {
  0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0; }
  10% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); } /* 異쒕컻 �� 媛뺤“ */
  60% { transform: translate(calc(350px - 45px - 50%), calc(50px - 125px - 50%)) scale(1); opacity: 1; } /* 紐⑺몴 �꾨떖 */
  80% { transform: translate(calc(350px - 45px - 50%), calc(50px - 125px - 50%)) scale(0.8); opacity: 0; } /* �꾩갑 �� �щ씪吏� */
  100% { opacity: 0; }
}

/* �⑦궥 2: �멸났吏��ν뻾 (�꾨옒濡�) */
.p2 {
  animation: transfer-impact-2 2.5s cubic-bezier(0.25, 0.8, 0.25, 1) infinite;
}
@keyframes transfer-impact-2 {
  0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0; }
  10% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
  60% { transform: translate(calc(350px - 45px - 50%), calc(150px - 125px - 50%)) scale(1); opacity: 1; }
  80% { transform: translate(calc(350px - 45px - 50%), calc(150px - 125px - 50%)) scale(0.8); opacity: 0; }
  100% { opacity: 0; }
}


.user-node {
  width: 90px; height: 120px; text-align: center; font-weight: 700; z-index: 2;
  background: white; border-radius: 12px; padding: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}
.connect-line-horz {
  width: 200px; height: 2px; background: #eee; position: absolute; z-index: 1;
}
.packet {
  position: absolute; padding: 6px 12px; background: var(--sakura); color: white;
  border-radius: 50px; font-weight: 700; font-size: 0.8rem; z-index: 3;
  animation: transfer 3s infinite cubic-bezier(0.45, 0, 0.55, 1);
}
@keyframes transfer {
  0% { transform: translateX(-100px) scale(0.9); opacity: 0; }
  20% { opacity: 1; transform: translateX(-100px) scale(1); }
  80% { opacity: 1; transform: translateX(100px) scale(1); }
  100% { transform: translateX(100px) scale(0.9); opacity: 0; }
}

.review-box {
  background: #fff; padding: 60px 40px; border-radius: 30px; text-align: center;
  max-width: 900px; margin: 0 auto; border: 1px solid var(--line);
}
.quote-mark { font-size: 5rem; line-height: 0; color: var(--sakura); opacity: 0.2; font-family: serif; display: block; margin-bottom: 30px; }
.review-box h3 { font-size: 1.5rem; line-height: 1.6; font-weight: 500; margin-bottom: 30px; }
.reviewer strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }


/* =========================================
   FAQ & DOWNLOAD
   ========================================= */
.small-container { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 24px; margin-bottom: 16px;
}
.faq-q { font-weight: 700; font-size: 1.1rem; margin-bottom: 10px; }
.faq-a { color: var(--text-sub); font-size: 0.95rem; }


.free-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 100px; height: 100px; border-radius: 50%;
  background: var(--sakura); color: white; font-weight: 800; font-size: 1.4rem;
  box-shadow: 0 0 0 rgba(255, 79, 147, 0.4); animation: pulse 2s infinite; margin-bottom: 30px;
}
@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 79, 147, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 30px rgba(255, 79, 147, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 79, 147, 0); }
}
.free-title { font-size: 3rem; font-weight: 800; margin-bottom: 24px; line-height: 1.2; }
.free-desc { font-size: 1.2rem; max-width: 600px; margin: 0 auto; color: var(--text-sub); }

.download-btns { display: flex; gap: 20px; flex-wrap: wrap; }
.btn-large { padding: 18px 40px; font-size: 1.1rem; border-radius: 12px; }
.os-icon { margin-right: 8px; }

/* Responsive */
@media (max-width: 768px) {
  .hero-title { font-size: 2.8rem; }
  .grid-2, .feature-layout, .hero-container { grid-template-columns: 1fr; }
  .free-title { font-size: 2.2rem; }
  .console-mockup { height: auto; min-height: 480px; }
}




/* 踰꾪듉 �ㅽ��� (Dark Section �꾩슜) */
.btn-large {
  padding: 18px 42px;
  font-size: 1.1rem;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}


/* 2. Left Side: Visual Diagram Box */
.split-visual {
  height: 400px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  position: relative;
  box-shadow: 0 20px 50px rgba(0,0,0,0.03);
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden; /* SVG �좎씠 諛뽰쑝濡� �섍��� 寃� 諛⑹� */
}

.logic-diagram {
  width: 100%;
  height: 100%;
  position: relative;
}

/* 3. Nodes Styling */
.node {
  position: absolute;
  padding: 10px 24px;
  background: #ffffff;
  border: 2px solid var(--text-main);
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-main);
  z-index: 2;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  transform: translate(-50%, -50%); /* �뺥솗�� 以묒떖 諛곗튂 */
}

/* Center Node (Black) */
.n-center {
  top: 50%; left: 50%;
  background: var(--text-main);
  color: #ffffff;
  border-color: var(--text-main);
  z-index: 3;
}

/* Surrounding Nodes Positions */
.n1 { top: 25%; left: 20%; }
.n2 { top: 75%; left: 20%; }
.n3 { top: 50%; left: 80%; }

/* 4. Connecting Lines (SVG) */
.svg-connect {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 1;
  pointer-events: none;
}
.svg-connect line {
  stroke: #e0e0e0;
  stroke-width: 2;
  stroke-dasharray: 6; /* �먯꽑 �④낵 */
  animation: dash 30s linear infinite; /* 泥쒖쿇�� �먮Ⅴ�� �④낵 */
}
@keyframes dash {
  to { stroke-dashoffset: -1000; }
}

/* 5. Right Side: Feature List */
.feature-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.f-item {
  padding-left: 24px;
  border-left: 3px solid var(--sakura); /* �묓겕�� 媛뺤“ �쇱씤 */
}

.f-item strong {
  display: block;
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 8px;
}

.f-item p {
  font-size: 1rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin: 0;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
  .split-layout { grid-template-columns: 1fr; }
  .split-visual { height: 320px; }
  .node { padding: 8px 16px; font-size: 0.85rem; }
  .n1 { left: 25%; } .n2 { left: 25%; } .n3 { left: 75%; }
}

/* =========================================
   NEW SOLUTION SECTION (DIAGRAM STYLE)
   ========================================= */

/* 1. 醫뚯슦 遺꾪븷 洹몃━�� */
.split-layout {
  display: grid;
  gap: 60px;
  align-items: center;
}
@media (min-width: 992px) {
  .split-layout {
    grid-template-columns: 1fr 1fr; /* PC �붾㈃�먯꽌 1:1 遺꾪븷 */
  }
}

/* 2. �쇱そ 諛뺤뒪 (�ㅼ씠�닿렇�� 諛곌꼍) */
.split-visual {
  height: 420px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,0.05);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.logic-diagram {
  width: 100%;
  height: 100%;
  position: relative;
}

/* 3. �몃뱶 �붿옄�� (�κ렐 �뚯빟 紐⑥뼇) */
.node {
  position: absolute;
  padding: 12px 24px;
  background: #ffffff;
  border: 2px solid var(--text-main);
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-main);
  z-index: 2;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  transform: translate(-50%, -50%); /* �뺥솗�� 以묒븰 �뺣젹 */
  white-space: nowrap;
}

/* 以묒븰 寃����� �몃뱶 */
.n-center {
  top: 50%; left: 50%;
  background: var(--text-main);
  color: #ffffff;
  border-color: var(--text-main);
  z-index: 10;
}

/* 二쇰� �몃뱶 �꾩튂 */
.n1 { top: 30%; left: 20%; } /* �숈깮 A �곷떞 */
.n2 { top: 70%; left: 20%; } /* �숇�紐� �꾪솕 */
.n3 { top: 50%; left: 80%; } /* 蹂닿굔�� 湲곕줉 */

/* 4. �곌껐�� (SVG �먯꽑) */
.svg-connect {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 1;
  pointer-events: none;
}
.svg-connect line {
  stroke: #d1d5db;
  stroke-width: 2;
  stroke-dasharray: 6;
  animation: dash 40s linear infinite;
}
@keyframes dash {
  to { stroke-dashoffset: -1000; }
}

/* 5. �ㅻⅨ履� �띿뒪�� 由ъ뒪�� (鍮④컙 以�) */
.feature-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.f-item {
  padding-left: 24px;
  border-left: 3px solid var(--sakura); /* �묓겕�� �몃줈�� */
}

.f-item strong {
  display: block;
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 8px;
}

.f-item p {
  font-size: 1rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin: 0;
}

/* 紐⑤컮�� ���� */
@media (max-width: 768px) {
  .split-layout { grid-template-columns: 1fr; }
  .split-visual { height: 300px; }
  .node { padding: 8px 16px; font-size: 0.8rem; }
  .n1 { left: 25%; } .n2 { left: 25%; } .n3 { left: 75%; }
}

/* =========================================
   PROCESS FLOW SECTION (3-STEP)
   ========================================= */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.step-card {
  background: #ffffff;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.step-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 30px 60px rgba(0,0,0,0.1);
}

.step-header {
  padding: 32px;
  background: #fff;
  border-bottom: 1px solid #f0f0f0;
}

.step-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--sakura);
  background: var(--sakura-dim);
  padding: 6px 12px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.step-header h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}

.step-header p {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.5;
  margin: 0;
}

.step-img-box {
  background: #f8f9fa;
  padding: 20px;
  flex-grow: 1; /* 移대뱶 �믪씠 留욎텛湲� */
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  border: 1px solid rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

.step-card:hover .step-img {
  transform: scale(1.02);
}

/* 紐⑤컮�� ���� */
@media (max-width: 768px) {
  .process-steps { grid-template-columns: 1fr; gap: 30px; }
  .step-img-box { padding: 15px; }
}

/* style.css�� 異붽� */

/* .text-center �덉뿉 �덈뒗 .sec-desc�� 諛뺤뒪 �먯껜�� 媛��대뜲 �뺣젹 */
.text-center .sec-desc {
  margin-left: auto;
  margin-right: auto;
}

/* =========================================
   TECH PROOF SECTION (REAL IMAGE VER - FIXED)
   ========================================= */
.tech-proof-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  align-items: center;
  margin-top: 40px;
}

/* 이미지 영역 컨테이너 */
.papers-visual-real {
  position: relative;
  height: 540px; /* 높이를 늘려서 논문이 더 시원하게 보이도록 수정 */
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

/* 개별 논문 카드 프레임 */
.real-paper {
  position: absolute;
  width: 380px; /* 너비 확대 (가독성 향상) */
  height: auto;
  border-radius: 2px; /* 종이 질감을 위해 라운드 축소 */
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
  background: #fff;
  transition: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  overflow: hidden;
}

.paper-img {
  width: 100%;
  display: block;
  /* 아래쪽만 부드럽게 사라지게 처리 (제목 강조) */
  mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
}

/* 뒤쪽 논문 (DATASET MKSL) */
.p-back {
  transform: rotate(-6deg) translate(-40px, -20px) scale(0.95);
  z-index: 1;
  opacity: 0.8;
  filter: grayscale(100%) contrast(0.9); /* 뒤쪽은 흑백으로 눌러줌 */
}

/* 앞쪽 논문 (AI GEN - 메인) */
.p-front {
  transform: rotate(3deg) translate(20px, 10px);
  z-index: 2;
  border-top: 4px solid var(--sakura);
  box-shadow: 0 30px 60px rgba(0,0,0,0.2); /* 그림자 강화 */
}

/* 마우스 올렸을 때 인터랙션 (종이가 앞으로 튀어나옴) */
.papers-visual-real:hover .p-front {
  transform: rotate(0deg) translate(40px, 0px) scale(1.05);
  z-index: 10;
}
.papers-visual-real:hover .p-back {
  transform: rotate(-10deg) translate(-60px, 10px) scale(0.95);
}

/* =========================================
   저자 가리기 (Redaction Blur) - 위치 정밀 조정
   ========================================= */
.blur-cover {
  position: absolute;
  left: 8%; 
  width: 84%; /* 좌우 너비 맞춤 */
  background: rgba(255, 255, 255, 0.1); /* 투명도 높임 */
  backdrop-filter: blur(5px); /* 글자가 뭉개져 보이도록 */
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  
  /* 보안 문서 패턴 */
  background-image: repeating-linear-gradient(
    45deg,
    rgba(0, 0, 0, 0.03),
    rgba(0, 0, 0, 0.03) 6px,
    transparent 6px,
    transparent 12px
  );
}

/* 스탬프 효과 (이미지 버전) */
.p-stamp-real {
  position: absolute;
  bottom: 25%; /* 위치 상향 조정 */
  right: 20px;
  width: 90px;
  height: 90px;
  border: 4px solid var(--sakura); /* 테두리 강화 */
  border-radius: 50%;
  background: rgba(255,255,255,0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--sakura);
  font-weight: 900;
  transform: rotate(-15deg);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  backdrop-filter: blur(4px);
  mix-blend-mode: multiply; /* 종이에 도장 찍힌 듯한 효과 */
}
.p-stamp-real span { font-size: 0.9rem; line-height: 1; letter-spacing: -0.05em; }
.p-stamp-real small { font-size: 0.7rem; margin-top: 4px; font-family: var(--font-serif); }

/* =========================================
   NEW PHILOSOPHY SECTION (담백한 버전)
   ========================================= */
.philosophy-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 0;
  text-align: center;
  border-top: 1px solid #eee; /* 아주 연한 구분선 */
  border-bottom: 1px solid #eee;
}

.ph-text {
  font-size: 1.35rem;
  line-height: 1.8;
  color: #333;
  word-break: keep-all;
  font-weight: 400;
  opacity: 0.9;
}

.ph-text strong {
  font-weight: 700;
  color: #191f28; /* 진한 검정 */
  box-shadow: inset 0 -10px 0 rgba(255, 79, 147, 0.1); /* 벚꽃색 형광펜 효과 아주 연하게 */
}

.ph-author {
  margin-top: 40px;
  font-size: 0.9rem;
  color: #888;
  font-family: var(--font-main);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

.ph-author::before {
  content: '';
  display: block;
  width: 30px;
  height: 1px;
  background: #ddd;
}

/* 모바일 대응 */
@media (max-width: 768px) {
  .ph-text { font-size: 1.1rem; line-height: 1.7; }
  .philosophy-wrapper { padding: 40px 20px; border: none; background: #fdfdfd; border-radius: 12px; }
}