:root {
    --bg: #f5f5f7;
    --card-bg: #fff;
    --text: #1d1d1f;
    --accent: #ea3447;
}

body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, sans-serif; background: var(--bg); color: var(--text); }
.container { max-width: 1000px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; color: inherit; }

/* Nav */
.navbar { height: 60px; background: rgba(255,255,255,0.8); backdrop-filter: blur(20px); position: sticky; top: 0; z-index: 100; }
.nav-content { max-width: 1000px; margin: 0 auto; height: 100%; display: flex; justify-content: space-between; align-items: center; padding: 0 20px; }
.logo { font-weight: 800; font-size: 20px; }
.nav-right a { margin-left: 20px; font-size: 14px; }
.btn-black { background: #000; color: #fff; padding: 6px 16px; border-radius: 20px; font-size: 12px; }

/* Hero */
.hero { padding: 80px 0; text-align: center; }
.hero h1 { font-size: 60px; line-height: 1.1; margin-bottom: 20px; }
.hero p { font-size: 24px; color: #86868b; margin-bottom: 60px; }

/* Bento Grid */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 250px);
    gap: 20px;
}
.cell { background: var(--card-bg); border-radius: 24px; overflow: hidden; position: relative; transition: 0.3s; }
.cell:hover { transform: scale(1.02); box-shadow: 0 20px 40px rgba(0,0,0,0.1); }

.large-cell { grid-column: span 2; grid-row: span 2; background: #000; color: #fff; display: flex; align-items: center; justify-content: center; }
.video-cell { background: url('https://images.unsplash.com/photo-1497215728101-856f4ea42174?ixlib=rb-1.2.1&auto=format&fit=crop&w=800&q=80') center/cover; }
.cell-content { position: absolute; bottom: 30px; left: 30px; text-align: left; }
.play-btn { width: 50px; height: 50px; background: rgba(255,255,255,0.2); backdrop-filter: blur(10px); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-top: 20px; cursor: pointer; }

.medium-cell { grid-column: span 1; grid-row: span 1; display: flex; flex-direction: column; justify-content: center; align-items: center; }
.stat-cell { background: #fff; }
.stat-num { font-size: 40px; font-weight: 800; color: var(--accent); }
.stat-desc { color: #86868b; font-size: 14px; }

.icon-cell { background: #e3f2fd; color: #2196f3; }
.icon-cell i { font-size: 40px; margin-bottom: 10px; }

.wide-cell { grid-column: span 2; grid-row: span 1; background: #fff; display: flex; align-items: center; justify-content: center; gap: 20px; }
.avatars { display: flex; }
.avatars span { width: 40px; height: 40px; background: #ddd; border-radius: 50%; border: 3px solid #fff; margin-left: -15px; }
.avatars span:first-child { margin-left: 0; background: #ffccbc; }
.avatars span:nth-child(2) { background: #c5cae9; }
.avatars span:nth-child(3) { background: #b2dfdb; }

/* Scroll Showcase */
.scroll-showcase { padding: 80px 0; overflow: hidden; }
.h-scroll { display: flex; gap: 20px; overflow-x: auto; padding-bottom: 40px; -webkit-overflow-scrolling: touch; }
.card { min-width: 200px; height: 280px; background: #fff; border-radius: 20px; padding: 30px; display: flex; flex-direction: column; justify-content: space-between; transition: 0.3s; }
.card:hover { transform: translateY(-10px); box-shadow: 0 15px 30px rgba(0,0,0,0.1); }
.icon { font-size: 40px; margin-bottom: 20px; }
.c-writer { color: #2196f3; }
.c-sheet { color: #4caf50; }
.c-ppt { color: #ff9800; }
.c-pdf { color: #f44336; }
.c-flow { color: #9c27b0; }

/* Bento Detail Section */
.bento-detail-section { padding: 80px 0; }
.bento-detail-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(2, 280px); gap: 20px; }
.bd-cell { border-radius: 24px; padding: 30px; position: relative; overflow: hidden; transition: 0.3s; }
.bd-cell:hover { transform: scale(1.02); }
.bd-cell.large { grid-column: span 2; grid-row: span 2; display: flex; flex-direction: column; justify-content: center; }
.bd-cell.medium { grid-column: span 1; grid-row: span 1; display: flex; flex-direction: column; justify-content: center; }

.bd-cell.dark { background: #1d1d1f; color: #fff; }
.bd-cell.light { background: #fff; color: #1d1d1f; }
.bd-cell.accent { background: var(--accent); color: #fff; text-align: center; align-items: center; }

.bd-cell h3 { font-size: 40px; line-height: 1.1; margin-bottom: 20px; }
.bd-cell h4 { font-size: 18px; margin-bottom: 10px; font-weight: 600; }
.bd-cell p { font-size: 14px; opacity: 0.8; line-height: 1.5; }

.bd-icon { font-size: 32px; margin-bottom: 15px; color: var(--accent); }
.bd-stat { font-size: 48px; font-weight: 800; margin-bottom: 5px; }

.bd-img-stack { position: absolute; right: -20px; bottom: -20px; width: 200px; height: 200px; }
.bd-img { position: absolute; background: #333; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
.i1 { width: 160px; height: 120px; bottom: 40px; right: 40px; z-index: 2; background: #444; }
.i2 { width: 140px; height: 100px; bottom: 20px; right: 0; z-index: 1; opacity: 0.5; }

/* FAQ Section */
.faq-section { padding: 80px 0; }
.section-title { font-size: 32px; text-align: center; margin-bottom: 60px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.faq-item { background: #fff; padding: 30px; border-radius: 16px; transition: 0.3s; }
.faq-item:hover { box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
.faq-item h4 { font-size: 18px; margin-bottom: 10px; color: #1d1d1f; }
.faq-item p { font-size: 14px; color: #86868b; line-height: 1.6; }

/* Download CTA Section */
.download-cta-section { padding: 80px 0; }
.cta-box { background: #000; border-radius: 24px; padding: 80px 40px; text-align: center; color: #fff; position: relative; overflow: hidden; }
.cta-box::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle at center, rgba(234, 52, 71, 0.2) 0%, transparent 60%); pointer-events: none; }
.cta-content { position: relative; z-index: 1; max-width: 600px; margin: 0 auto; }
.cta-content h2 { font-size: 48px; margin-bottom: 20px; letter-spacing: -1px; }
.cta-content p { font-size: 18px; color: #aaa; margin-bottom: 40px; }
.cta-buttons { display: flex; justify-content: center; gap: 20px; margin-bottom: 30px; }
.btn-cta-primary { background: #fff; color: #000; padding: 15px 40px; border-radius: 50px; font-weight: bold; font-size: 16px; transition: 0.3s; display: flex; align-items: center; gap: 10px; }
.btn-cta-primary:hover { transform: scale(1.05); box-shadow: 0 10px 30px rgba(255,255,255,0.2); }
.btn-cta-secondary { background: rgba(255,255,255,0.1); color: #fff; padding: 15px 30px; border-radius: 50px; font-weight: bold; font-size: 16px; transition: 0.3s; display: flex; align-items: center; gap: 10px; backdrop-filter: blur(10px); }
.btn-cta-secondary:hover { background: rgba(255,255,255,0.2); }
.cta-note { font-size: 12px; color: #666; }

/* Footer */
.footer { padding: 60px 0; background: #fff; font-size: 12px; color: #86868b; }
.f-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; margin-bottom: 40px; }
.f-grid h4 { color: #1d1d1f; margin-bottom: 15px; }
.f-grid a { display: block; margin-bottom: 8px; }
.copy { border-top: 1px solid #eee; padding-top: 20px; }