.fh-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:64px}.fh-card{padding:36px;border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--bg);transition:border-color .25s,box-shadow .25s,transform .25s}.fh-card:hover{border-color:var(--blue-100);box-shadow:var(--shadow-md);transform:translateY(-3px)}.fh-card.highlight{grid-column:1 / -1;background:var(--gray-900);color:#fff;border-color:transparent;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.fh-card.highlight:hover{transform:translateY(-3px);box-shadow:0 16px 48px #0003}.fh-icon{width:48px;height:48px;border-radius:12px;background:var(--blue-50);color:var(--blue-500);display:flex;align-items:center;justify-content:center;margin-bottom:20px}.fh-icon svg{width:24px;height:24px}.fh-card.highlight .fh-icon{background:#60a5fa26;color:var(--blue-300)}.fh-card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px}.fh-card.highlight h3{color:#fff;font-size:1.3rem}.fh-card p{font-size:.92rem;color:var(--text-muted);line-height:1.7}.fh-card.highlight p{color:var(--gray-400)}.chat-preview{background:#0f1117;border-radius:var(--radius-lg);padding:24px;border:1px solid rgba(255,255,255,.06)}.chat-msg{display:flex;gap:12px;margin-bottom:16px}.chat-msg:last-child{margin-bottom:0}.chat-avatar{width:32px;height:32px;border-radius:8px;font-size:.75rem;font-weight:700;color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}.chat-bubble{background:#ffffff0f;border-radius:10px;padding:10px 14px}.chat-name{font-size:.75rem;font-weight:600;color:var(--gray-400);margin-bottom:4px}.chat-text{font-size:.85rem;color:#c9d1d9;line-height:1.55}.chat-text .mention{color:var(--blue-300);font-weight:600}.feature-detail{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:80px 0;border-bottom:1px solid var(--border)}.feature-detail:last-child{border-bottom:none}.feature-detail.reverse .fd-text{order:2}.feature-detail.reverse .fd-visual{order:1}.fd-text h3{font-size:1.5rem;line-height:1.3;margin-bottom:14px}.fd-text p{font-size:.92rem;color:var(--text-muted);line-height:1.7;margin-bottom:12px}.fd-checklist{list-style:none;margin-top:16px;padding:0}.fd-checklist li{position:relative;padding-left:28px;margin-bottom:12px;font-size:.88rem;color:var(--gray-700)}.fd-checklist li:before{content:"";position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:4px;background:var(--blue-50);background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='%232563EB' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6.5 11.5L3 8l1-1 2.5 2.5L11 5l1 1-5.5 5.5z'/%3E%3C/svg%3E")}.fd-visual-box{background:var(--gray-50);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;display:flex;align-items:center;justify-content:center;min-height:280px}.notif-mock{width:100%;max-width:320px}.notif-item{display:flex;gap:12px;padding:14px 16px;background:var(--bg);border-radius:10px;border:1px solid var(--border);margin-bottom:10px;box-shadow:var(--shadow-sm);transition:transform .2s}.notif-item:hover{transform:translate(4px)}.notif-dot{width:8px;height:8px;border-radius:50%;background:var(--blue-500);margin-top:6px;flex-shrink:0}.notif-dot.read{background:var(--gray-200)}.notif-content{flex:1}.notif-title{font-size:.82rem;font-weight:600;color:var(--text-strong);margin-bottom:2px}.notif-desc{font-size:.78rem;color:var(--text-muted)}.notif-time{font-size:.72rem;color:var(--text-faint);margin-top:4px}.dnd-mock{width:100%}.dnd-area{border:2px dashed var(--gray-200);border-radius:12px;padding:28px;text-align:center;background:var(--bg);transition:border-color .2s,background .2s}.dnd-area:hover{border-color:var(--blue-500);background:var(--blue-50)}.dnd-area svg{width:36px;height:36px;color:var(--gray-400);margin:0 auto 10px}.dnd-area p{font-size:.85rem;color:var(--text-muted)}.dnd-area p strong{color:var(--blue-500)}.dnd-files{margin-top:16px}.dnd-file{display:flex;align-items:center;gap:10px;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:10px 14px;margin-bottom:8px}.dnd-file-icon{width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;color:#fff}.dnd-file-icon.pdf{background:var(--red-600)}.dnd-file-icon.img{background:var(--purple-600)}.dnd-file-name{font-size:.82rem;font-weight:500;color:var(--text)}.dnd-file-size{font-size:.75rem;color:var(--text-faint)}.theme-mock{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:12px}.theme-card{border-radius:10px;padding:18px;min-height:100px;display:flex;flex-direction:column;justify-content:flex-end}.theme-card span{font-size:.75rem;font-weight:600;opacity:.8}.theme-card small{font-size:.68rem;opacity:.6;margin-top:2px}@media(max-width:900px){.fh-grid,.fh-card.highlight{grid-template-columns:1fr}.feature-detail{grid-template-columns:1fr;gap:32px}.feature-detail.reverse .fd-text{order:1}.feature-detail.reverse .fd-visual{order:2}}@media(max-width:600px){.theme-mock{grid-template-columns:1fr}}