/* ============================================================
   소금노트 랜딩 페이지 전용 스타일
   /finance/assets/landing.css
   ============================================================ */

/* ── 리셋 & 변수 ── */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --ink: #111;
    --ink-2: #555;
    --ink-3: #888;
    --ink-4: #aaa;
    --line: #e8e8e8;
    --line-soft: #f0f0f0;
    --bg: #fafafa;
    --bg-card: #fff;
    --accent: #1a56db;
    --salt: #f4a261;
}
html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Pretendard', 'Segoe UI', sans-serif;
    color: var(--ink);
    background: var(--bg-card);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* ── 헤더 ── */
.nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,0.96);
    backdrop-filter: saturate(140%) blur(10px);
    border-bottom: 1px solid var(--line);
}
.nav-inner {
    max-width: 1080px; margin: 0 auto;
    padding: 14px 22px;
    display: flex; justify-content: space-between; align-items: center;
}
.logo { font-size: 17px; font-weight: 700; letter-spacing: -0.3px; }
.logo-emoji { font-size: 18px; margin-right: 4px; }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-link { font-size: 13px; color: var(--ink-2); }
.nav-link:hover { color: var(--ink); }
.btn-login {
    font-size: 13px; padding: 7px 14px;
    border: 1px solid var(--line); border-radius: 8px;
    background: #fff; color: var(--ink-2);
    transition: all .15s;
}
.btn-login:hover { border-color: var(--ink-3); color: var(--ink); }

/* ── 컨테이너 ── */
.section { padding: 80px 22px; }
.section-tight { padding: 56px 22px; }
.container { max-width: 980px; margin: 0 auto; }
.container-narrow { max-width: 720px; margin: 0 auto; }

/* ── 히어로 ── */
.hero { text-align: center; padding: 72px 22px 36px; }
.hero h1 {
    font-size: 38px; font-weight: 700;
    letter-spacing: -1.2px; line-height: 1.25;
    margin-bottom: 18px; color: var(--ink);
}
.hero h1 .accent { color: var(--accent); position: relative; display: inline-block; }
.hero p.lead {
    font-size: 16px; color: var(--ink-3);
    line-height: 1.7; margin-bottom: 36px;
}
.cta-row {
    display: flex; justify-content: center; align-items: center; gap: 10px;
    flex-wrap: wrap; margin-bottom: 24px;
}
.btn-primary {
    background: #111; color: #fff;
    padding: 14px 28px;
    border: none; border-radius: 10px;
    font-size: 15px; font-weight: 600;
    cursor: pointer;
    transition: transform .12s, background .15s;
    display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary:hover { background: #000; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
    background: #fff; color: var(--ink-2);
    padding: 13px 22px;
    border: 1px solid var(--line); border-radius: 10px;
    font-size: 14px; font-weight: 500;
    cursor: pointer; transition: all .15s;
}
.btn-secondary:hover { border-color: var(--ink-3); color: var(--ink); }
.cta-note { font-size: 12px; color: var(--ink-4); margin-top: 8px; }

/* ── 슬라이드 컨테이너 ── */
.slides-wrap { max-width: 720px; margin: 32px auto 0; position: relative; }
.slides-frame {
    position: relative; overflow: hidden;
    border-radius: 16px; background: var(--bg);
    border: 1px solid var(--line);
    min-height: 380px;
}
.slide { display: none; padding: 24px 16px 16px; animation: slideFadeIn .5s ease; }
.slide.active { display: block; }
@keyframes slideFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.slide-tag-row {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 14px; padding: 0 4px; flex-wrap: wrap;
}
.slide-tag {
    font-size: 11px; font-weight: 600;
    padding: 4px 11px; background: #111; color: #fff;
    border-radius: 12px;
}
.slide-reroll {
    font-size: 11px; padding: 5px 11px;
    border: 1px solid var(--line); border-radius: 8px;
    background: #fff; cursor: pointer;
    color: var(--ink-2); transition: all .15s;
}
.slide-reroll:hover { border-color: var(--ink-3); color: var(--ink); background: #fafafa; }
.slide-title { font-size: 13px; color: var(--ink-3); text-align: center; margin-bottom: 18px; }
.slide-arrow {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 36px; height: 36px; border-radius: 50%;
    background: rgba(255,255,255,0.92);
    border: 1px solid var(--line);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; color: var(--ink-2);
    transition: all .15s; z-index: 5;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}
.slide-arrow:hover { background: #fff; color: var(--ink); box-shadow: 0 3px 10px rgba(0,0,0,0.08); }
.slide-arrow.left { left: 8px; }
.slide-arrow.right { right: 8px; }
.slide-dots { display: flex; justify-content: center; gap: 7px; margin-top: 12px; }
.slide-dot {
    width: 6px; height: 6px; border-radius: 3px;
    background: var(--line); cursor: pointer;
    transition: all .3s; border: none; padding: 0;
}
.slide-dot.active { width: 22px; background: var(--ink); }

/* ── 슬라이드 내부 미니 UI ── */
.mini-quick {
    max-width: 380px; margin: 0 auto;
    background: #fff; border-radius: 12px;
    padding: 16px 14px;
    border: 1px solid var(--line);
}
.mini-quick-tabs { display: flex; gap: 6px; margin-bottom: 12px; }
.mini-quick-tab {
    padding: 6px 14px; border-radius: 14px;
    font-size: 12px; font-weight: 600;
    border: 1.5px solid var(--line);
    background: #fff; color: var(--ink-3);
}
.mini-quick-tab.active { background: #fde8e8; border-color: #e53e3e; color: #e53e3e; }
.mini-quick-input {
    background: var(--bg); padding: 10px 12px;
    border-radius: 8px; margin-bottom: 6px;
    font-size: 12px; color: var(--ink-2);
}
.mini-quick-btn {
    background: #111; color: #fff;
    padding: 11px; border-radius: 8px;
    text-align: center; font-size: 13px; font-weight: 600;
    margin-top: 8px;
}

.mini-todo { max-width: 440px; margin: 0 auto; }
.mini-todo-cats {
    display: flex; gap: 6px; margin-bottom: 12px;
    flex-wrap: wrap; justify-content: center;
}
.mini-todo-cat {
    padding: 4px 11px; border-radius: 12px;
    font-size: 11px; font-weight: 600;
}
.mini-todo-row {
    background: #fff; border: 1px solid var(--line);
    padding: 11px 14px; border-radius: 9px;
    margin-bottom: 6px;
    display: flex; align-items: center; gap: 10px;
}
.mini-todo-check {
    width: 16px; height: 16px;
    border: 2px solid #ccc; border-radius: 4px;
    flex-shrink: 0;
}
.mini-todo-check.done {
    background: #10b981; border-color: #10b981;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 10px;
}
.mini-todo-title { flex: 1; font-size: 13px; color: var(--ink); }
.mini-todo-row.done .mini-todo-title { text-decoration: line-through; color: var(--ink-3); }
.mini-todo-row.done { opacity: 0.55; }
.mini-todo-tag { font-size: 10px; font-weight: 600; }

.mini-member { max-width: 480px; margin: 0 auto; }
.mini-member-filter {
    display: flex; gap: 6px; align-items: center;
    padding: 10px 12px; background: #fff;
    border-radius: 10px; border: 1px solid var(--line);
    margin-bottom: 12px; flex-wrap: wrap;
}
.mini-member-chip {
    padding: 4px 11px; border-radius: 14px;
    font-size: 11px; border: 1px solid var(--line);
    background: #fff; color: var(--ink-2);
}
.mini-member-chip.on { background: #1a56db; color: #fff; border-color: #1a56db; font-weight: 600; }
.mini-member-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
.mini-member-stat {
    background: #fff; padding: 14px 16px;
    border-radius: 10px; border: 1px solid var(--line);
}
.mini-member-stat-label { font-size: 11px; color: var(--ink-3); }
.mini-member-stat-value { font-size: 18px; font-weight: 700; margin-top: 4px; letter-spacing: -0.3px; }
.mini-member-note {
    background: #fff; padding: 11px 14px;
    border-radius: 9px; border: 1px solid var(--line);
    font-size: 12px; color: var(--ink-2);
    text-align: center;
}

/* ── Sankey 미리보기 ── */
.sankey-preview {
    max-width: 720px; margin: 32px auto 0;
    padding: 24px 16px 16px;
    background: var(--bg); border-radius: 16px;
    border: 1px solid var(--line);
}
.sankey-header {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 14px; padding: 0 4px; flex-wrap: wrap;
}
.sankey-tag { font-size: 11px; color: var(--ink-3); }
.sankey-name {
    font-size: 11px; font-weight: 600;
    padding: 4px 11px; background: #111; color: #fff;
    border-radius: 12px; white-space: nowrap;
}
.sankey-reroll {
    margin-left: auto; font-size: 11px;
    padding: 5px 11px;
    border: 1px solid var(--line);
    border-radius: 8px; background: #fff;
    cursor: pointer; color: var(--ink-2);
    transition: all .15s;
}
.sankey-reroll:hover { border-color: var(--ink-3); color: var(--ink); background: #fafafa; }
.sankey-preview svg { width: 100%; height: auto; display: block; }
.sankey-caption { font-size: 12px; color: var(--ink-4); text-align: center; margin-top: 14px; }

/* ── 진단 카드 ── */
.insight-preview {
    max-width: 720px; margin: 14px auto 0;
    padding: 20px 18px;
    background: #fff; border-radius: 16px;
    border: 1px solid var(--line);
}
.ip-head { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.ip-head-icon { font-size: 18px; }
.ip-head-title { font-size: 14px; font-weight: 600; color: var(--ink); }
.ip-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 14px; }
.ip-metric {
    background: #fafafa; border-radius: 10px;
    padding: 12px 14px; border-left: 3px solid #ccc;
}
.ip-metric-label { font-size: 11px; color: var(--ink-3); }
.ip-metric-value { font-size: 18px; font-weight: 700; margin-top: 4px; letter-spacing: -0.3px; }
.ip-tier { font-size: 11px; font-weight: 700; margin: 12px 0 6px; display: flex; align-items: center; gap: 4px; }
.ip-tier.urgent { color: #c53030; }
.ip-tier.warn { color: #b45309; }
.ip-tier.good { color: #16a34a; }
.ip-risk { border-radius: 9px; padding: 11px 13px; margin-bottom: 8px; }
.ip-risk.urgent { background: #fff5f5; border: 1px solid #fecaca; }
.ip-risk.warn { background: #fffbeb; border: 1px solid #fde68a; }
.ip-risk.good { background: #f0fdf4; border: 1px solid #bbf7d0; }
.ip-risk-msg { display: flex; gap: 8px; align-items: center; font-size: 13px; font-weight: 500; }
.ip-risk.urgent .ip-risk-msg { color: #e53e3e; }
.ip-risk.warn .ip-risk-msg { color: #b45309; }
.ip-risk.good .ip-risk-msg { color: #166534; }
.ip-risk-tip {
    display: flex; gap: 8px; align-items: flex-start;
    margin-top: 6px; padding-left: 24px;
    font-size: 12px; line-height: 1.6;
}
.ip-risk.urgent .ip-risk-tip { color: #c53030; }
.ip-risk.warn .ip-risk-tip { color: #92400e; }

/* ── 타겟 그룹 ── */
.targets { background: var(--bg); }
.section-title {
    font-size: 28px; font-weight: 700;
    letter-spacing: -0.8px; text-align: center;
    margin-bottom: 12px; color: var(--ink);
}
.section-sub {
    font-size: 14px; color: var(--ink-3);
    text-align: center; margin-bottom: 48px;
    line-height: 1.7;
}
.target-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.target-card {
    background: #fff; padding: 28px 22px;
    border-radius: 14px; border: 1px solid var(--line);
    text-align: center; transition: all .2s;
    cursor: pointer; display: flex; flex-direction: column;
}
.target-card:hover {
    border-color: var(--ink); transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.04);
}
.target-icon { font-size: 32px; margin-bottom: 14px; line-height: 1; }
.target-name { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.target-desc { font-size: 13px; color: var(--ink-3); line-height: 1.6; flex: 1; }
.target-tag { font-size: 11px; color: var(--accent); margin-top: 12px; font-weight: 500; }

/* ── 차별점 ── */
.features { background: #fff; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; margin-top: 8px; }
.feature-card { padding: 32px 24px; background: var(--bg); border-radius: 14px; transition: all .2s; }
.feature-card:hover { background: #f5f5f5; }
.feature-num {
    display: inline-block; width: 28px; height: 28px;
    line-height: 28px; text-align: center;
    background: var(--ink); color: #fff;
    border-radius: 8px; font-size: 13px; font-weight: 600;
    margin-bottom: 14px;
}
.feature-title {
    font-size: 17px; font-weight: 600;
    margin-bottom: 8px; color: var(--ink);
    letter-spacing: -0.3px;
}
.feature-desc { font-size: 13px; color: var(--ink-3); line-height: 1.7; }
.feature-eg {
    margin-top: 14px; padding: 10px 12px;
    background: #fff; border-radius: 8px;
    border: 1px solid var(--line);
    font-size: 12px; color: var(--ink-2);
    font-family: -apple-system, monospace;
}

/* ── 보안 ── */
.security { background: var(--bg); padding: 64px 22px; }
.security-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 12px; background: #fff;
    border: 1px solid var(--line); border-radius: 20px;
    font-size: 11px; color: var(--ink-3);
    font-weight: 600; margin-bottom: 18px;
    letter-spacing: 0.3px;
}
.security-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 12px; margin: 32px auto 12px;
    max-width: 720px;
}
.security-card {
    background: #fff; border: 1px solid var(--line);
    border-radius: 12px; padding: 22px 20px;
    transition: border-color .15s, transform .15s, box-shadow .15s;
    display: block; text-decoration: none; color: inherit;
    cursor: pointer;
}
.security-card:hover {
    border-color: var(--ink-4); transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(0,0,0,0.04);
}
.security-detail-link {
    display: inline-block; font-size: 13px; color: var(--ink-2);
    text-decoration: none; padding: 8px 0;
    border-bottom: 1px solid transparent;
    transition: border-color .15s, color .15s;
}
.security-detail-link:hover { color: var(--ink); border-bottom-color: var(--ink-3); }
.security-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.security-icon {
    width: 36px; height: 36px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; flex-shrink: 0;
}
.security-icon.green   { background: #ecfdf5; }
.security-icon.blue    { background: #eff6ff; }
.security-icon.purple  { background: #faf5ff; }
.security-icon.orange  { background: #fff7ed; }
.security-tag { font-size: 11px; font-weight: 700; letter-spacing: 0.5px; }
.security-tag.green   { color: #16a34a; }
.security-tag.blue    { color: #1a56db; }
.security-tag.purple  { color: #7c3aed; }
.security-tag.orange  { color: #d97706; }
.security-title-row { font-size: 15px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.security-desc { font-size: 12px; color: var(--ink-3); line-height: 1.6; }
.security-foot {
    max-width: 720px; margin: 0 auto;
    background: #f0fdf4; border: 1px solid #bbf7d0;
    border-radius: 12px; padding: 16px 20px;
    display: flex; align-items: center; gap: 14px;
}
.security-foot-check { font-size: 22px; color: #16a34a; flex-shrink: 0; }
.security-foot-title { font-size: 13px; font-weight: 600; color: #15803d; margin-bottom: 3px; }
.security-foot-desc { font-size: 12px; color: #15803d; opacity: 0.75; line-height: 1.6; }

/* ── 가격 ── */
.pricing { background: #fff; padding: 56px 22px; text-align: center; }

/* ── 가격 토글 (랜딩용 컴팩트) ── */
.cycle-toggle-mini { display: flex; justify-content: center; margin-bottom: 28px; }
.toggle-mini-box {
    display: inline-flex; background: #f0f0f0;
    border-radius: 10px; padding: 4px; gap: 2px;
}
.toggle-mini-box button {
    padding: 8px 18px; border: none; border-radius: 8px;
    font-size: 13px; font-weight: 600;
    cursor: pointer; background: transparent;
    color: var(--ink-3); transition: all .15s;
    display: inline-flex; align-items: center; gap: 6px;
}
.toggle-mini-box button.active {
    background: #fff; color: var(--ink);
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.toggle-mini-box .save-tag {
    background: #16a34a; color: #fff;
    font-size: 10px; font-weight: 700;
    padding: 2px 6px; border-radius: 4px;
}
.pricing-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 14px; max-width: 580px; margin: 0 auto;
}
.price-card {
    padding: 28px 22px; border: 1px solid var(--line);
    border-radius: 14px; text-align: left;
    background: var(--bg);
}
.price-card.highlight {
    background: #111; color: #fff;
    border-color: #111; position: relative; overflow: hidden;
}
.price-card.highlight::before {
    content: '인기';
    position: absolute; top: 14px; right: 14px;
    background: var(--salt); color: #fff;
    font-size: 10px; padding: 3px 8px;
    border-radius: 4px; font-weight: 600;
}
.price-name { font-size: 13px; color: var(--ink-3); margin-bottom: 8px; }
.price-card.highlight .price-name { color: rgba(255,255,255,0.6); }
.price-amount { font-size: 28px; font-weight: 700; margin-bottom: 4px; letter-spacing: -1px; }
.price-unit { font-size: 13px; color: var(--ink-3); margin-bottom: 16px; }
.price-card.highlight .price-unit { color: rgba(255,255,255,0.6); }
.price-features { font-size: 13px; line-height: 1.9; color: var(--ink-2); }
.price-card.highlight .price-features { color: rgba(255,255,255,0.85); }
.pricing-link {
    display: inline-block; margin-top: 24px;
    font-size: 13px; color: var(--ink-3);
    border-bottom: 1px solid var(--ink-4);
    padding-bottom: 2px;
}

/* ── 패밀리 플랜 안내 (랜딩 가격 섹션 하단) ── */
.family-hint {
    margin: 28px auto 0;
    max-width: 580px;
    padding: 14px 18px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 12px;
    font-size: 13px;
    color: var(--ink-2);
    text-align: center;
    line-height: 1.7;
}
.family-hint a {
    color: var(--ink);
    text-decoration: none;
    margin-left: 4px;
    border-bottom: 1px solid var(--ink-3);
    padding-bottom: 1px;
    transition: border-color .15s;
    display: inline-block;
    margin-top: 2px;
}
.family-hint a:hover { border-bottom-color: var(--ink); }
@media (max-width: 720px) {
    .family-hint { font-size: 12px; padding: 12px 14px; }
    .family-hint a { display: block; margin-top: 6px; margin-left: 0; }
}

/* ── 바닥 CTA ── */
.bottom-cta {
    background: #111; color: #fff;
    padding: 80px 22px; text-align: center;
}
.bottom-cta h2 {
    font-size: 32px; font-weight: 700;
    letter-spacing: -1px; margin-bottom: 16px; color: #fff;
}
.bottom-cta p { font-size: 15px; color: rgba(255,255,255,0.6); margin-bottom: 36px; }
.bottom-cta .btn-primary { background: #fff; color: #111; }
.bottom-cta .btn-primary:hover { background: #fafafa; }

/* ── 중간 CTA ── */
.mid-cta { text-align: center; padding: 56px 22px 28px; background: var(--bg); }
.mid-cta-title {
    font-size: 22px; font-weight: 700;
    letter-spacing: -0.6px; color: var(--ink);
    margin-bottom: 8px;
}
.mid-cta-sub { font-size: 13px; color: var(--ink-3); margin-bottom: 22px; line-height: 1.7; }

/* ── 푸터 ── */
.footer {
    background: var(--bg);
    border-top: 1px solid var(--line);
    padding: 48px 22px 28px;
}
.footer-inner {
    max-width: 980px;
    margin: 0 auto;
}
.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 32px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--line);
}
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 4px;
    letter-spacing: 0.3px;
}
.footer-col a {
    font-size: 12px;
    color: var(--ink-3);
    text-decoration: none;
    transition: color .15s;
}
.footer-col a:hover { color: var(--ink); }
.footer-col-meta {
    font-size: 11px;
    color: var(--ink-4);
    margin-top: 2px;
}

/* 사업자 정보 */
.footer-biz {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
}
.footer-biz-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--ink-2);
    margin-bottom: 10px;
    letter-spacing: 0.3px;
}
.footer-biz-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 18px;
    font-size: 11px;
    color: var(--ink-3);
    line-height: 1.8;
}
.footer-biz-grid strong {
    color: var(--ink-2);
    font-weight: 600;
}

/* 최하단 */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 11px;
    color: var(--ink-4);
}

@media (max-width: 720px) {
    .footer { padding: 36px 18px 20px; }
    .footer-cols {
        grid-template-columns: 1fr 1fr;
        gap: 20px 16px;
        margin-bottom: 24px;
        padding-bottom: 22px;
    }
    .footer-biz-grid { flex-direction: column; gap: 4px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 4px; }
}

/* ── Sankey 애니메이션 ── */
@keyframes flow {
    0% { stroke-dashoffset: 100; opacity: 0.5; }
    100% { stroke-dashoffset: 0; opacity: 0.85; }
}
@keyframes flowReverse {
    0% { stroke-dashoffset: 0; opacity: 0.85; }
    100% { stroke-dashoffset: -100; opacity: 0.5; }
}
@keyframes pulse {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(1.04); }
}
.sankey-flow { stroke-dasharray: 5 3; animation: flowReverse 4s linear infinite; }
.sankey-flow.f2 { animation-duration: 5s; animation-delay: -1s; }
.sankey-flow.f3 { animation-duration: 6s; animation-delay: -2s; }
.sankey-flow.f4 { animation-duration: 4.5s; animation-delay: -0.5s; }
.sankey-flow.f5 { animation-duration: 5.5s; animation-delay: -1.5s; }
.sankey-node { transform-origin: center; animation: pulse 3s ease-in-out infinite; }
.sankey-node.n2 { animation-delay: -1s; }
.sankey-node.n3 { animation-delay: -2s; }

/* ── 반응형 ── */
@media (max-width: 720px) {
    .section { padding: 56px 18px; }
    .section-tight { padding: 40px 18px; }
    .hero { padding: 48px 18px 28px; }
    .hero h1 { font-size: 30px; letter-spacing: -1px; }
    .hero p.lead { font-size: 15px; }
    .section-title { font-size: 24px; }
    .target-grid { grid-template-columns: 1fr; gap: 10px; }
    .feature-grid { grid-template-columns: 1fr; gap: 12px; }
    .pricing-grid { grid-template-columns: 1fr; gap: 12px; }
    .security-grid { grid-template-columns: 1fr; gap: 10px; }
    .bottom-cta h2 { font-size: 26px; }
    .btn-primary { padding: 13px 24px; font-size: 14px; }
    .nav-inner { padding: 12px 18px; }
    .nav-actions { gap: 10px; }
    .nav-link { display: none; }
    .slide-arrow { width: 32px; height: 32px; font-size: 16px; }
    .slide-arrow.left { left: 6px; }
    .slide-arrow.right { right: 6px; }
    .slide { padding: 20px 12px 12px; }
    .mid-cta { padding: 40px 18px 24px; }
    .mid-cta-title { font-size: 19px; }
}