@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #f5f5f7;--bg-secondary: #ffffff;--bg-card: #ffffff;--bg-card-hover: #fafafa;--bg-input: #f0f0f3;--bg-preview: #e8eaed;--border-subtle: #e0e0e4;--border-input: #d1d1d6;--border-focus: #25D366;--green: #25D366;--green-dark: #1da855;--green-hover: #1a9e4e;--green-glow: rgba(37,211,102,.1);--text-primary: #1a1a1f;--text-secondary: #5c5c6e;--text-muted: #8e8e9a;--text-on-green: #ffffff;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--shadow-card: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-card-hover: 0 4px 12px rgba(0,0,0,.08);--transition: .2s ease;--code-bg: #1e1e2e;--code-text: #c8c8e0;--popup-bg: #ffffff;--popup-text: #333333;--popup-msg-bg: #f0f0f0}[data-theme=dark]{--bg-primary: #0f0f14;--bg-secondary: #18181f;--bg-card: #1c1c26;--bg-card-hover: #22222e;--bg-input: 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svg{width:13px;height:13px}.card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:32px;box-shadow:var(--shadow-card);margin-bottom:28px;transition:background var(--transition),border-color var(--transition),box-shadow var(--transition)}.card:hover{box-shadow:var(--shadow-card-hover)}.card-title{font-size:1.1rem;font-weight:700;margin-bottom:24px;display:flex;align-items:center;gap:10px}.card-title svg{color:var(--green);width:20px;height:20px}.toggle-group{display:flex;background:var(--bg-input);border-radius:var(--radius-md);padding:4px;border:1px solid var(--border-subtle);margin-bottom:28px}.toggle-btn{flex:1;padding:10px 16px;border-radius:var(--radius-sm);font-size:.875rem;font-weight:600;color:var(--text-secondary);transition:all var(--transition);text-align:center}.toggle-btn.active{background:var(--green);color:var(--text-on-green)}.toggle-btn:not(.active):hover{color:var(--text-primary);background:var(--bg-card-hover)}.form-group{margin-bottom:20px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-label{display:block;font-size:.8rem;font-weight:600;color:var(--text-secondary);margin-bottom:8px;letter-spacing:.3px}.form-input,.form-select,.form-textarea{width:100%;padding:11px 14px;background:var(--bg-input);border:1px solid var(--border-input);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.9rem;transition:all var(--transition);outline:none}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px var(--green-glow)}.form-input::placeholder,.form-textarea::placeholder{color:var(--text-muted)}.form-textarea{resize:vertical;min-height:80px}.form-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239090a8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}.form-select option{background:var(--bg-card);color:var(--text-primary)}.section-sep{border:none;height:1px;background:var(--border-subtle);margin:28px 0}.section-title{font-size:.95rem;font-weight:700;color:var(--text-primary);margin-bottom:20px}.checkbox-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:8px}.checkbox-item{display:flex;align-items:center;gap:8px;padding:6px 10px;border-radius:var(--radius-sm);cursor:pointer;transition:background 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.agent-msg{background:var(--popup-msg-bg);padding:10px 12px;border-radius:8px;margin-bottom:12px;line-height:1.5}.preview-popup-body .info-row{display:flex;align-items:center;gap:8px;color:var(--text-secondary);margin-bottom:8px;font-size:.8rem}.preview-popup-body .info-row svg{flex-shrink:0;width:15px;height:15px}.preview-popup-body .chat-link{display:block;text-align:center;background:var(--green);color:#fff;padding:10px;border-radius:8px;font-weight:600;font-size:.85rem;margin-top:14px;transition:background var(--transition)}.preview-popup-body .chat-link:hover{background:var(--green-hover)}.code-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:12px}.copy-btn{display:flex;align-items:center;gap:8px;padding:9px 18px;background:var(--green);color:#fff;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;transition:background var(--transition),transform var(--transition)}.copy-btn:hover{background:var(--green-hover);transform:translateY(-1px)}.copy-btn.copied{background:#059669}.code-block{background:var(--code-bg);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:20px;overflow-x:auto;font-family:SF Mono,Fira Code,Consolas,monospace;font-size:.8rem;line-height:1.7;color:var(--code-text);white-space:pre-wrap;word-break:break-all}.features{padding:48px 20px}.features-heading{text-align:center;font-size:1.5rem;font-weight:800;margin-bottom:10px}.features-sub{text-align:center;color:var(--text-secondary);margin-bottom:36px;font-size:.95rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;max-width:900px;margin:0 auto}.feature-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:24px 22px;transition:all var(--transition);box-shadow:var(--shadow-card)}.feature-card:hover{border-color:var(--green);box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.feature-icon{width:42px;height:42px;background:var(--green-glow);border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--green)}.feature-card h3{font-size:.95rem;font-weight:700;margin-bottom:6px}.feature-card p{font-size:.83rem;color:var(--text-secondary);line-height:1.6}.faq{padding:36px 20px 52px;max-width:700px;margin:0 auto}.faq-heading{text-align:center;font-size:1.35rem;font-weight:800;margin-bottom:24px}.faq-item{border:1px solid var(--border-subtle);border-radius:var(--radius-md);margin-bottom:10px;overflow:hidden;background:var(--bg-card);box-shadow:var(--shadow-card);transition:border-color var(--transition)}.faq-item:hover{border-color:var(--green)}.faq-q{width:100%;text-align:left;padding:14px 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1fr}.preview-area{height:300px}.preview-popup{width:260px;right:10px;bottom:74px}.features-heading{font-size:1.25rem}}.tz-wrapper{position:relative}.tz-trigger{width:100%;padding:11px 14px;background:var(--bg-input);border:1px solid var(--border-input);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.9rem;text-align:left;display:flex;justify-content:space-between;align-items:center;transition:all var(--transition)}.tz-trigger:focus{border-color:var(--green);box-shadow:0 0 0 3px var(--green-glow);outline:none}.tz-dropdown{position:absolute;top:100%;left:0;right:0;margin-top:4px;background:var(--bg-card);border:1px solid var(--border-input);border-radius:var(--radius-sm);max-height:280px;overflow-y:auto;z-index:50;display:none;box-shadow:0 8px 24px #0000001f}.tz-dropdown.open{display:block;animation:fadeSlideIn .2s ease}.tz-search{position:sticky;top:0;padding:8px;background:var(--bg-card);border-bottom:1px solid var(--border-subtle)}.tz-search 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