/* ============================================================
   대성화스너 — 연혁 페이지 고유 스타일 (원본 전체)
   ============================================================ */


  :root {
    --bg: #FFFFFF;
    --bg-soft: #F6F9F7;
    --bg-tint: #ECF5EF;
    --bg-dark: #0B1410;
    --border: #E5E9E6;
    --border-hover: #CCD5CF;
    --green: #16A34A;
    --green-bright: #22C55E;
    --green-soft: #4ADE80;
    --green-tint: #DCFCE7;
    --green-bg: #F0FDF4;
    --green-dark: #0F7A37;
    --text-1: #0B1410;
    --text-2: #3F4A42;
    --text-3: #6B7A70;
    --text-4: #9AA69E;
    --shadow-sm: 0 1px 2px rgba(11, 20, 16, 0.04);
    --shadow: 0 4px 16px rgba(11, 20, 16, 0.06);
    --shadow-lg: 0 12px 40px rgba(11, 20, 16, 0.08);
    --shadow-xl: 0 24px 80px rgba(11, 20, 16, 0.12);
    --font-sans: 'Pretendard Variable', 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, 'Apple SD Gothic Neo', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Monaco, monospace;
    --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  em { font-style: normal; }
  body {
    background: var(--bg);
    color: var(--text-1);
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    cursor: none;
    /* Korean typography — 자연스러운 줄바꿈 */
    word-break: keep-all;
    overflow-wrap: break-word;
  }
  @media (pointer: coarse) { body { cursor: default; } }
  ::selection { background: var(--green); color: #fff; }

  /* Headings & paragraphs — 균형잡힌 줄바꿈 (최신 브라우저) */
  h1, h2, h3, h4, h5, h6 { text-wrap: balance; }
  p, li, dd, blockquote { text-wrap: pretty; }
  .grain {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 9998;
    opacity: 0.035;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='300' height='300'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' seed='5'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  }

  .cursor-dot, .cursor-ring {
    position: fixed; top: 0; left: 0;
    pointer-events: none; z-index: 10000;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
  }
  .cursor-dot {
    width: 6px; height: 6px;
    background: #fff;
    transition: width 0.2s, height 0.2s, background 0.2s;
  }
  .cursor-ring {
    width: 32px; height: 32px;
    border: 1.2px solid rgba(255, 255, 255, 0.55);
    transition: width 0.3s var(--ease-expo), height 0.3s var(--ease-expo), border-color 0.3s, transform 0.12s linear;
  }
  .cursor-ring.hover {
    width: 56px; height: 56px;
    border-color: var(--green-soft);
    background: rgba(74, 222, 128, 0.06);
  }
  .cursor-dot.hover {
    width: 4px; height: 4px;
    background: var(--green-soft);
  }
  @media (pointer: coarse) { .cursor-dot, .cursor-ring { display: none; } }

  .scroll-progress {
    position: fixed; top: 0; left: 0;
    height: 2px; background: var(--green);
    z-index: 200; width: 0%;
    transition: width 0.1s linear;
  }

  /* ============ NAV ============ */
  .nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 18px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .nav.scrolled { padding: 12px 48px; }
  .nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 17px;
    color: var(--text-1);
    letter-spacing: -0.01em;
    text-decoration: none;
  }
  .nav-logo svg { width: 28px; height: 28px; }
  .nav-menu { display: flex; gap: 36px; list-style: none; }
  .nav-menu a {
    color: var(--text-2);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.25s;
    position: relative;
  }
  .nav-menu a.active { color: var(--green); font-weight: 600; }
  .nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 0; height: 1px;
    background: currentColor;
    transition: width 0.3s var(--ease-expo);
  }
  .nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
  .nav-menu a:hover { color: var(--green); }
  .nav-right { display: flex; align-items: center; gap: 20px; }
  .lang-toggle {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-3);
    letter-spacing: 0.1em;
    cursor: none;
    transition: color 0.25s;
  }
  .lang-toggle:hover { color: var(--green); }
  .btn-nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    background: var(--text-1);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: none;
    transition: all 0.3s var(--ease-expo);
  }
  .btn-nav-cta:hover {
    background: var(--green);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(22, 163, 74, 0.3);
  }

  /* ============ PAGE HERO ============ */
  .page-hero {
    padding: 140px 48px 80px;
    background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
  }
  .page-hero-hex {
    position: absolute;
    top: 0; right: 0;
    width: 600px; height: 600px;
    opacity: 0.04;
    pointer-events: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='104' viewBox='0 0 120 104'><path d='M60 0L120 34.6V69.3L60 104L0 69.3V34.6L60 0Z' fill='none' stroke='%2316A34A' stroke-width='1'/></svg>");
    background-size: 120px 104px;
  }
  .page-hero-inner {
    max-width: 1280px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
  }
  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-3);
    letter-spacing: 0.05em;
    margin-bottom: 32px;
    text-transform: uppercase;
  }
  .breadcrumb a {
    color: var(--text-3);
    text-decoration: none;
    transition: color 0.2s;
  }
  .breadcrumb a:hover { color: var(--green); }
  .breadcrumb .sep { color: var(--text-4); }
  .breadcrumb .current { color: var(--green); font-weight: 600; }
  .page-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--green);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 20px;
    padding: 5px 12px;
    border: 1px solid var(--green-tint);
    border-radius: 100px;
    background: var(--green-bg);
  }
  .page-title {
    font-size: clamp(44px, 5.5vw, 76px);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.035em;
    color: var(--text-1);
    margin-bottom: 20px;
    max-width: 900px;
  }
  .page-title em {
    color: var(--green);
    letter-spacing: -0.01em;
  }
  .page-subtitle {
    font-size: 19px;
    color: var(--text-3);
    line-height: 1.6;
    max-width: 720px;
  }

  /* Year stat strip in hero */
  .hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
  }
  .hero-stat-val {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-1);
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
    display: flex;
    align-items: baseline;
    gap: 4px;
  }
  .hero-stat-val em {
    color: var(--green);
  }
  .hero-stat-val .unit {
    font-size: 16px;
    color: var(--text-3);
    font-weight: 600;
  }
  .hero-stat-lbl {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.15em;
    text-transform: uppercase;
  }

  /* ============ MAIN BODY ============ */
  .page-body {
    max-width: 1280px;
    margin: 0 auto;
    padding: 80px 48px 120px;
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 80px;
    align-items: flex-start;
  }
  .sidebar { position: sticky; top: 100px; }
  .sidebar-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-4);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
  }
  .sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .sidebar-menu li a {
    display: block;
    padding: 12px 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-2);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.25s var(--ease-expo);
    position: relative;
  }
  .sidebar-menu li a::before {
    content: '';
    position: absolute;
    left: -1px; top: 50%;
    transform: translateY(-50%);
    width: 2px; height: 0;
    background: var(--green);
    border-radius: 2px;
    transition: height 0.3s var(--ease-expo);
  }
  .sidebar-menu li a:hover {
    background: var(--bg-soft);
    color: var(--text-1);
  }
  .sidebar-menu li a.active {
    background: var(--green-bg);
    color: var(--green-dark);
    font-weight: 600;
  }
  .sidebar-menu li a.active::before { height: 60%; }

  /* Year jumper */
  .sidebar-years {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
  }
  .sidebar-years-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-4);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 14px;
  }
  .year-jumper {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .year-jumper a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 12px;
    font-size: 13px;
    color: var(--text-3);
    text-decoration: none;
    border-radius: 6px;
    border-left: 2px solid transparent;
    transition: all 0.2s;
    font-family: var(--font-mono);
    font-weight: 500;
  }
  .year-jumper a:hover {
    color: var(--green);
    background: var(--bg-soft);
  }
  .year-jumper a.active {
    color: var(--green);
    border-left-color: var(--green);
    background: var(--green-bg);
    font-weight: 700;
  }
  .year-jumper a .year-jumper-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--text-4);
    transition: all 0.3s;
    flex-shrink: 0;
  }
  .year-jumper a:hover .year-jumper-dot,
  .year-jumper a.active .year-jumper-dot {
    background: var(--green);
    box-shadow: 0 0 0 3px var(--green-tint);
  }

  .content { max-width: 880px; }

  /* ============ TIMELINE INTRO ============ */
  .timeline-intro {
    margin-bottom: 72px;
  }
  .timeline-intro-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--green);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 12px;
    font-weight: 600;
  }
  .timeline-intro-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.025em;
    margin-bottom: 20px;
    color: var(--text-1);
  }
  .timeline-intro-title em {
    color: var(--green);
  }
  .timeline-intro-desc {
    font-size: 17px;
    color: var(--text-3);
    line-height: 1.65;
  }

  /* ============ TIMELINE ============ */
  .timeline {
    position: relative;
    padding: 40px 0;
  }

  /* Center vertical line */
  .timeline::before {
    content: '';
    position: absolute;
    left: 60px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
    border-radius: 2px;
    z-index: 0;
  }

  /* Progress fill (animates with scroll) */
  .timeline-progress {
    position: absolute;
    left: 60px;
    top: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--green-bright), var(--green));
    border-radius: 2px;
    z-index: 1;
    height: 0;
    transition: height 0.1s linear;
  }

  /* Era / decade marker */
  .era-marker {
    position: relative;
    margin: 60px 0 40px;
    padding-left: 120px;
  }
  .era-marker:first-child { margin-top: 0; }
  .era-marker::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    background: var(--bg);
    border: 2px solid var(--green);
    border-radius: 50%;
    z-index: 2;
  }
  .era-marker-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--green);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 4px;
    padding: 4px 10px;
    border: 1px solid var(--green-tint);
    border-radius: 100px;
    background: var(--green-bg);
    font-weight: 600;
  }
  .era-marker-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-1);
    letter-spacing: -0.02em;
  }
  .era-marker-title em {
    color: var(--green);
  }

  /* Milestone */
  .milestone {
    position: relative;
    padding-left: 120px;
    padding-bottom: 40px;
  }
  .milestone:last-child { padding-bottom: 0; }

  /* Dot on timeline */
  .milestone-dot {
    position: absolute;
    left: 53px;
    top: 28px;
    width: 16px;
    height: 16px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 50%;
    z-index: 2;
    transition: all 0.4s var(--ease-expo);
  }
  .milestone-dot::after {
    content: '';
    position: absolute;
    inset: 3px;
    background: var(--text-4);
    border-radius: 50%;
    transition: all 0.4s var(--ease-expo);
  }
  .milestone.in-view .milestone-dot {
    border-color: var(--green);
    box-shadow: 0 0 0 6px var(--green-bg);
  }
  .milestone.in-view .milestone-dot::after {
    background: var(--green);
  }

  /* Year label outside card */
  .milestone-year {
    position: absolute;
    left: 0;
    top: 22px;
    width: 50px;
    text-align: right;
    font-size: 28px;
    font-weight: 400;
    color: var(--text-3);
    line-height: 1;
    transition: color 0.4s ease;
  }
  .milestone.in-view .milestone-year {
    color: var(--green);
  }

  /* Card */
  .milestone-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px 28px;
    transition: all 0.4s var(--ease-expo);
    position: relative;
    overflow: hidden;
  }
  .milestone-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--green-bg) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s;
  }
  .milestone-card:hover {
    border-color: var(--green-tint);
    box-shadow: var(--shadow-lg);
    transform: translateX(4px);
  }
  .milestone-card:hover::before { opacity: 1; }
  .milestone-card > * { position: relative; z-index: 2; }

  .milestone-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
  }
  .milestone-head-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
  }
  .milestone-date {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.05em;
    font-weight: 500;
  }
  .milestone-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: var(--bg-soft);
    color: var(--text-3);
    border: 1px solid var(--border);
  }
  .milestone-tag svg { width: 11px; height: 11px; opacity: 0.7; }

  .milestone-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-1);
    letter-spacing: -0.015em;
    line-height: 1.4;
    margin-bottom: 8px;
  }
  .milestone-desc {
    font-size: 14px;
    color: var(--text-3);
    line-height: 1.6;
  }
  .milestone-extra {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-3);
    line-height: 1.55;
  }
  .milestone-extra strong { color: var(--text-2); }
  .milestone-extra .extra-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
  }
  .milestone-extra .extra-row + .extra-row { margin-top: 6px; }
  .milestone-extra .extra-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-4);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    flex-shrink: 0;
    min-width: 60px;
  }

  /* 모든 마일스톤은 동일 톤 — 사실은 보는 사람이 판단 */

  /* End card - Today */
  .timeline-end {
    position: relative;
    margin-top: 32px;
    padding-left: 0;
  }
  .timeline-end::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 24px;
    width: 22px;
    height: 22px;
    background: var(--green);
    border: 2px solid var(--green-dark);
    border-radius: 50%;
    z-index: 3;
    box-shadow: 0 0 0 8px var(--green-bg);
  }
  .timeline-end::after {
    content: '';
    position: absolute;
    left: 56px;
    top: 30px;
    width: 10px;
    height: 10px;
    background: #fff;
    border-radius: 50%;
    z-index: 4;
  }
  .timeline-end-card {
    margin-left: 120px;
    padding: 32px 36px;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #102820 100%);
    border-radius: 16px;
    color: #fff;
    position: relative;
    overflow: hidden;
  }
  .timeline-end-card::before {
    content: '';
    position: absolute;
    top: -30%; right: -20%;
    width: 60%; height: 120%;
    background: radial-gradient(ellipse at center, rgba(22, 163, 74, 0.3) 0%, transparent 60%);
    pointer-events: none;
  }
  .timeline-end-content { position: relative; z-index: 2; }
  .timeline-end-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    background: rgba(74, 222, 128, 0.15);
    border: 1px solid rgba(74, 222, 128, 0.4);
    border-radius: 100px;
    color: var(--green-soft);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    margin-bottom: 16px;
  }
  .timeline-end-tag-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--green-soft);
    box-shadow: 0 0 8px var(--green-soft);
    animation: pulse 2s infinite;
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
  }
  .timeline-end-card h3 {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    color: #fff;
  }
  .present-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  .present-item {}
  .present-val {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
    display: flex;
    align-items: baseline;
    gap: 4px;
  }
  .present-unit {
    font-size: 12px;
    color: var(--green-soft);
    font-weight: 500;
    font-family: var(--font-mono);
  }
  .present-lbl {
    font-family: var(--font-mono);
    font-size: 10px;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  @media (max-width: 640px) {
    .present-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  }

  /* ============ NEXT CHAPTER CTA ============ */
  .next-chapter {
    margin-top: 80px;
    padding: 48px;
    background: var(--bg-soft);
    border-radius: 20px;
    border: 1px solid var(--border);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 32px;
    align-items: center;
  }
  .next-chapter-content h3 {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -0.015em;
    color: var(--text-1);
  }
  .next-chapter-content h3 em {
    color: var(--green);
  }
  .next-chapter-content p {
    font-size: 14px;
    color: var(--text-3);
    line-height: 1.55;
  }
  .next-chapter-arrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--text-1);
    color: #fff;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s var(--ease-expo);
    cursor: none;
    white-space: nowrap;
  }
  .next-chapter-arrow:hover {
    background: var(--green);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(22, 163, 74, 0.3);
    gap: 16px;
  }

  /* ============ FOOTER ============ */
  footer {
    padding: 48px;
    background: #060B08;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }
  .footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.4);
    font-size: 13px;
    flex-wrap: wrap;
    gap: 24px;
  }

  /* ============ RESPONSIVE ============ */
  @media (max-width: 1024px) {
    .nav-menu { display: none; }
    .page-body {
      grid-template-columns: 1fr;
      gap: 48px;
      padding: 60px 28px 80px;
    }
    .sidebar {
      position: relative;
      top: 0;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border);
    }
    .sidebar-menu {
      flex-direction: row;
      flex-wrap: wrap;
      gap: 6px;
    }
    .sidebar-years { display: none; }
  }
  @media (max-width: 640px) {
    .nav { padding: 16px 20px; }
    .page-hero { padding: 110px 20px 60px; }
    .page-body { padding: 40px 20px 60px; }
    .hero-stats { gap: 28px; }

    .timeline::before, .timeline-progress { left: 14px; }
    .era-marker { padding-left: 50px; }
    .era-marker::before { left: 4px; }
    .milestone { padding-left: 50px; }
    .milestone-dot { left: 7px; }
    .milestone-year {
      position: relative;
      left: auto; top: auto;
      width: auto;
      text-align: left;
      margin-bottom: 4px;
      font-size: 22px;
    }
    .milestone-card {
      padding: 18px 20px;
    }
    .timeline-end::before { left: 4px; }
    .timeline-end::after { left: 10px; }
    .timeline-end-card { margin-left: 50px; padding: 24px; }
    .timeline-end-card h3 { font-size: 26px; }

    .next-chapter {
      grid-template-columns: 1fr;
      padding: 28px;
    }
    .footer-inner { flex-direction: column; text-align: center; }
  }
  @media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  }

  /* ============================================== */
  /* 📌 공통 네비게이션 드롭다운                       */
  /* ============================================== */
  .nav-menu li { position: relative; }
  .nav-menu li > a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }
  .nav-dropdown {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    min-width: 180px;
    background: #FFFFFF;
    border: 1px solid var(--border, #E5E9E6);
    border-radius: 12px;
    padding: 8px;
    box-shadow: 0 14px 40px -8px rgba(11, 20, 16, 0.18), 0 4px 12px -2px rgba(11, 20, 16, 0.08);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s var(--ease-expo, cubic-bezier(0.22, 1, 0.36, 1)), transform 0.22s var(--ease-expo, cubic-bezier(0.22, 1, 0.36, 1)), visibility 0.22s;
    list-style: none;
    z-index: 1000;
    margin: 0;
  }
  .nav-dropdown::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 0;
    right: 0;
    height: 8px;
  }
  .nav-menu li.has-dropdown:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }
  .nav-dropdown li { width: 100%; }
  .nav-dropdown a {
    display: block;
    padding: 10px 14px;
    color: var(--text-1, #0B1410) !important;
    font-size: 13.5px;
    font-weight: 500;
    border-radius: 8px;
    white-space: nowrap;
    transition: background 0.18s, color 0.18s;
  }
  .nav-dropdown a::after { display: none !important; }
  .nav-dropdown a:hover {
    background: var(--green-bg, #F0FDF4);
    color: var(--green-dark, #0F7A37) !important;
  }
  @media (max-width: 768px) {
    .nav-dropdown { display: none; }
  }