/* vertical-farm-solution (vfsl) — 문제/해결책 2컬럼 대비 */
.vfsl-hero {
    position: relative;
    min-height: 58vh;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
}
.vfsl-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(8,10,8,.94) 0%, rgba(8,10,8,.55) 55%, rgba(8,10,8,.15) 100%);
}
.vfsl-hero-inner { position: relative; z-index: 1; padding: 56px 24px; max-width: var(--maxw); margin: 0 auto; width: 100%; color: #fff; }
.vfsl-eyebrow { display: inline-block; font-size: .72rem; letter-spacing: .16em; font-weight: 800; color: #ff8a7a; font-family: monospace; margin-bottom: 12px; }
.vfsl-hero-inner h1 { font-size: clamp(2.2rem, 6.5vw, 3.8rem); font-weight: 800; }
.vfsl-hero-lead { font-size: clamp(1.02rem, 2vw, 1.3rem); font-weight: 700; margin-top: 14px; max-width: 620px; }
.vfsl-hero-sub { margin-top: 8px; color: #cfd6cf; max-width: 560px; }
.vfsl-hero-cta { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

.vfsl-section { max-width: var(--maxw); margin: 0 auto; padding: 68px 24px; }
.vfsl-narrow { max-width: 800px; }
.vfsl-section h2 { font-size: clamp(1.5rem, 3.4vw, 2.2rem); font-weight: 800; margin-bottom: 24px; }
.vfsl-answer { padding: 18px 20px; background: var(--green-soft); border-left: 4px solid var(--green); font-weight: 700; border-radius: 4px; }
.vfsl-body { margin-top: 16px; color: #444; line-height: 1.8; }
.vfsl-intro-img { margin-top: 22px; width: 100%; border-radius: var(--radius); max-height: 320px; object-fit: cover; }

.vfsl-pairs { max-width: 960px; }
.vfsl-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    margin-bottom: 18px;
    border-radius: var(--radius);
    overflow: hidden;
}
.vfsl-col { padding: 26px 24px; }
.vfsl-problem { background: #fdf1ef; border-left: 4px solid #d9483a; }
.vfsl-solution { background: var(--green-soft); border-left: 4px solid var(--green); }
.vfsl-tag { display: inline-block; font-size: .7rem; font-weight: 800; letter-spacing: .08em; padding: 3px 10px; border-radius: 999px; margin-bottom: 10px; }
.vfsl-problem .vfsl-tag { background: #d9483a; color: #fff; }
.vfsl-solution .vfsl-tag { background: var(--green); color: #fff; }
.vfsl-col h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; }
.vfsl-col p { margin: 0; color: #444; line-height: 1.6; }

.vfsl-table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: .92rem; }
.vfsl-table th, .vfsl-table td { border: 1px solid var(--border); padding: 14px 16px; text-align: left; vertical-align: top; }
.vfsl-table th { background: #f7f7f5; font-weight: 800; }

.vfsl-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 8px; }
.vfsl-related-card { display: block; padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); font-weight: 700; color: var(--ink); background: #fff; }
.vfsl-related-card span { display: block; font-size: .75rem; font-weight: 800; color: var(--green); margin-bottom: 6px; }

.vfsl-cta { max-width: 860px; margin: 0 auto 80px; padding: 48px; text-align: center; background: var(--metal); color: #fff; border-radius: var(--radius); overflow: hidden; }
.vfsl-cta h2 { font-size: clamp(1.4rem, 3.2vw, 1.9rem); font-weight: 800; margin: 0; }
.vfsl-cta p { margin-top: 10px; color: #d6d6d6; }
.vfsl-cta-group { display: flex; gap: 12px; justify-content: center; margin-top: 22px; flex-wrap: wrap; }

.vfsl-btn { padding: 14px 26px; border-radius: 6px; font-weight: 700; font-size: .92rem; display: inline-flex; align-items: center; justify-content: center; min-height: 44px; box-sizing: border-box; }
.vfsl-btn-primary { background: #d9483a; color: #fff; }
.vfsl-btn-outline { border: 1.5px solid rgba(255,255,255,.8); color: #fff; }

.vfsl-updated { max-width: var(--maxw); margin: 0 auto 40px; padding: 0 24px; color: var(--gray); font-size: .85rem; }

@media (max-width: 720px) {
    .vfsl-pair { grid-template-columns: 1fr; }
    .vfsl-related-grid { grid-template-columns: 1fr; }
    .vfsl-table { font-size: .85rem; }
}