<style>
:root{--primary:#4361ee;--primary-dark:#3a0ca3;--secondary:#7209b7;--accent:#4cc9f0;--success:#06d6a0;--warning:#ff9f1c;--danger:#ef476f;--dark:#1a1a2e;--gray:#6c757d;--light:#f8f9fa;--border:#e2e8f0;--bg-gradient:linear-gradient(160deg,#f0f4ff 0%,#e8ffe8 40%,#f5f0ff 100%);--bg-card:#ffffff;--text-primary:#1e293b;--text-secondary:#475569;--text-muted:#94a3b8;--shadow:0 4px 24px rgba(67,97,238,0.08);--primary-light:rgba(67,97,238,0.08)}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg-gradient);color:var(--text-primary);line-height:1.75;overflow-x:hidden}
h1,h2,h3,h4,h5,h6{font-family:'Inter',sans-serif;font-weight:700;line-height:1.3}
.hero-section{padding:140px 0 100px;background:linear-gradient(135deg,#4361ee 0%,#3a0ca3 50%,#7209b7 100%);color:#fff;position:relative;overflow:hidden}
.hero-section::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:80px;background:var(--bg-gradient);clip-path:ellipse(55% 100% at 50% 100%)}
.hero-title{font-size:clamp(2.2rem,5vw,3.8rem);font-weight:900;margin-bottom:1.25rem}
.hero-desc{font-size:1.15rem;opacity:.92;max-width:620px}
.tool-wrapper{margin-top:-40px;position:relative;z-index:10;padding-bottom:2rem}
.tool-card{background:var(--bg-card);border-radius:20px;padding:2rem;box-shadow:var(--shadow);border:1px solid var(--border)}
.upload-zone{border:2.5px dashed rgba(67,97,238,0.3);border-radius:16px;padding:3.5rem 2rem;text-align:center;background:rgba(67,97,238,0.03);cursor:pointer;transition:all .3s}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--primary);background:rgba(67,97,238,0.07);transform:scale(1.01)}
.upload-zone h3{font-size:1.45rem;font-weight:700;color:var(--dark);margin-bottom:10px}
.upload-zone p{color:var(--gray);font-size:.95rem;max-width:480px;margin:0 auto 1.5rem;line-height:1.65}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(67,97,238,0.3)}
.btn-primary:disabled{background:#9ca3af;cursor:not-allowed;transform:none;box-shadow:none}
.btn-success{background:linear-gradient(135deg,var(--success),#00b4d8);color:#fff}
.btn-success:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(6,214,160,0.3)}
.btn-secondary{background:var(--light);color:var(--dark);border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}
.editor-wrap{margin-top:20px}
.editor-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:14px 18px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-radius:14px 14px 0 0;flex-wrap:wrap}
.editor-header h3{font-size:1.1rem;margin:0;display:flex;align-items:center;gap:8px}
.editor-header-info{font-size:.85rem;opacity:.9}
.editor-header-actions{display:flex;gap:8px}
.editor-header-actions .btn{padding:8px 14px;font-size:.85rem;background:rgba(255,255,255,0.2);color:#fff;border:1px solid rgba(255,255,255,0.3)}
.editor-header-actions .btn:hover{background:rgba(255,255,255,0.3)}
.editor-body{background:var(--bg-card);border:1px solid var(--border);border-top:none;border-radius:0 0 14px 14px;overflow:visible;min-height:650px}
.editor-main{padding:20px;min-height:600px;background:#f8f9fa;display:flex;flex-direction:column;border-radius:0 0 0 14px}
.editor-toolbar{background:var(--light);border-bottom:2px solid var(--border);padding:16px 20px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.toolbar-section{display:flex;align-items:center;gap:8px;padding:0 14px;border-right:1px solid #cbd5e1}
.toolbar-section:last-child{border-right:none}
.toolbar-label{font-size:.7rem;font-weight:800;color:var(--gray);text-transform:uppercase;letter-spacing:.5px;margin-right:4px}
.toolbar-tools{display:flex;flex-wrap:wrap;gap:6px}
.toolbar-tool{padding:9px 12px;border:2px solid #cbd5e1;background:var(--bg-card);border-radius:8px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:6px;font-size:.82rem;color:var(--dark);font-family:inherit;font-weight:600;min-width:auto}
.toolbar-tool:hover{border-color:var(--primary);background:rgba(67,97,238,0.08);transform:translateY(-1px)}
.toolbar-tool.active{border-color:var(--primary);background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(67,97,238,0.3)}
.toolbar-tool i{font-size:1rem}
.toolbar-color{display:flex;gap:5px}
.toolbar-swatch{width:28px;height:28px;border-radius:6px;cursor:pointer;border:3px solid transparent;transition:all .2s}
.toolbar-swatch:hover{transform:scale(1.15)}
.toolbar-swatch.active{border-color:var(--dark);box-shadow:0 0 0 2px var(--primary);transform:scale(1.1)}
.toolbar-size{display:flex;align-items:center;gap:8px}
.toolbar-size input[type=range]{width:90px;-webkit-appearance:none;height:5px;border-radius:3px;background:#cbd5e1;outline:none}
.toolbar-size input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--primary);cursor:pointer}
.toolbar-size-val{font-size:.85rem;font-weight:700;color:var(--dark);min-width:28px;text-align:center}
.toolbar-text-input{padding:8px 12px;border:2px solid #cbd5e1;border-radius:8px;font-size:.85rem;font-family:inherit;width:160px}
.toolbar-text-input:focus{outline:none;border-color:var(--primary)}
.page-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;padding:10px 14px;background:var(--bg-card);border-radius:10px;border:1px solid var(--border)}
.page-nav-info{font-size:.9rem;color:var(--dark);font-weight:600}
.page-nav-btns{display:flex;gap:6px}
.page-nav-btns button{padding:6px 10px;border:1px solid var(--border);background:var(--bg-card);border-radius:6px;cursor:pointer;font-size:.85rem;color:var(--dark);transition:all .2s;font-family:inherit}
.page-nav-btns button:hover:not(:disabled){border-color:var(--primary);color:var(--primary);background:rgba(67,97,238,0.05)}
.page-nav-btns button:disabled{opacity:.4;cursor:not-allowed}
.canvas-scroll{flex:1;overflow:auto;background:#e9ecef;border-radius:10px;padding:20px;display:flex;justify-content:center;align-items:flex-start;min-height:500px}
.canvas-wrapper{position:relative;display:inline-block;background:var(--bg-card);box-shadow:0 4px 20px rgba(0,0,0,0.15);border-radius:4px;min-width:300px;min-height:400px}
.canvas-wrapper canvas{display:block}
.annotation-canvas{position:absolute;top:0;left:0;cursor:crosshair;z-index:10}
.annotation-canvas.text-mode{cursor:text}
.annotation-canvas.select-mode{cursor:default}
.loading-state{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;color:var(--gray)}
.loading-state .spinner{width:40px;height:40px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 12px}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-state p{font-size:.9rem;margin:0}
.tool-group{margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.tool-group:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.tool-group-label{font-size:.8rem;font-weight:700;color:var(--dark);margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px;display:flex;align-items:center;gap:6px}
.tool-group-label i{color:var(--primary)}
.editor-footer{display:flex;gap:12px;margin-top:16px;padding:16px 20px;background:var(--bg-card);border:1px solid var(--border);border-top:none;border-radius:0 0 14px 14px;flex-wrap:wrap;align-items:center}
.editor-footer .btn{flex:1;min-width:180px;padding:14px 20px;font-size:1rem;justify-content:center}
.editor-footer .btn-success{flex:2}
.content-section{padding:60px 0}
.content-card{background:var(--bg-card);border-radius:20px;padding:40px;margin-bottom:32px;box-shadow:var(--shadow);border:1px solid var(--border)}
.content-card h2{font-size:1.6rem;margin-bottom:18px;color:var(--dark);font-weight:800}
.content-card h3{font-size:1.2rem;margin:24px 0 12px;color:var(--text-primary);font-weight:700}
.content-card p{color:var(--text-secondary);margin-bottom:16px;line-height:1.85;font-size:1.02rem}
.content-card ul,.content-card ol{color:var(--text-secondary);margin-bottom:18px;padding-left:24px;font-size:1.02rem;line-height:1.85}
.content-card ul li,.content-card ol li{margin-bottom:10px}
.content-card strong{color:var(--dark)}
.trust-bar{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;padding:16px 20px;background:linear-gradient(135deg,rgba(67,97,238,0.05),rgba(114,9,183,0.05));border-radius:12px;border:1px solid rgba(67,97,238,0.1)}
.trust-item{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--dark);font-weight:500}
.trust-item i{color:var(--success);font-size:1rem}
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-top:24px}
.step-item{display:flex;gap:14px;padding:20px;background:var(--light);border-radius:14px;border:1px solid var(--border)}
.step-num{flex-shrink:0;width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:1rem;font-weight:800}
.step-content h3{font-size:1rem;margin:0 0 4px;color:var(--dark);font-weight:700}
.step-content p{font-size:.88rem;margin:0;line-height:1.6}
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-top:20px}
.case-card{background:var(--light);border-radius:14px;padding:24px;border:1px solid var(--border);position:relative}
.case-number{position:absolute;top:-12px;left:20px;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:800}
.case-card h3{font-size:1.05rem;margin:12px 0 14px;color:var(--dark);font-weight:700}
.case-detail{font-size:.9rem;color:var(--text-secondary);margin-bottom:12px;line-height:1.65}
.case-detail strong{color:var(--primary-dark)}
.faq-section{margin-top:8px}
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:20px}
.faq-item{background:var(--light);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .2s}
.faq-item:hover{border-color:var(--primary)}
.faq-question{width:100%;background:none;border:none;padding:18px 20px;text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:1rem;font-weight:600;color:var(--dark);font-family:inherit}
.faq-question:hover{color:var(--primary)}
.faq-toggle{color:var(--gray);transition:transform .3s;font-size:.9rem}
.faq-item.open .faq-toggle{transform:rotate(180deg);color:var(--primary)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 20px}
.faq-item.open .faq-answer{max-height:500px;padding:0 20px 18px}
.faq-answer div{color:var(--text-secondary);font-size:.95rem;line-height:1.75}
.related-tools{display:grid;grid-template-columns:repeat(5,1fr);gap:1rem;margin-top:1.5rem}
.related-tool{display:flex;flex-direction:column;align-items:center;text-align:center;padding:1.25rem 0.75rem;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;transition:all 0.3s;text-decoration:none;color:var(--text-primary)}
.related-tool:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.tool-icon{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--primary-light);border-radius:var(--radius-sm);color:var(--primary);font-size:1.1rem;margin-bottom:0.6rem;flex-shrink:0}
.related-tool:hover .tool-icon{transform:scale(1.08)}
.tool-name{font-weight:700;font-size:0.85rem;color:var(--text-primary);margin-bottom:0.25rem}
.tool-desc{font-size:0.75rem;color:var(--text-muted);line-height:1.4}
@media(max-width:991px){.related-tools{grid-template-columns:repeat(3,1fr)}}
@media(max-width:575px){.related-tools{grid-template-columns:repeat(2,1fr)}}

        /* ========== CTA SECTION ========== */
        .cta-box {
            text-align:center;
            padding:2.5rem 2rem;
            background:var(--bg-card);
            border-radius:var(--radius-lg);
            border:1px solid var(--border);
            box-shadow:var(--shadow);
            margin-top:2rem;
        }
        .cta-box h2{font-size:1.35rem;margin-bottom:0.6rem;color:var(--text-primary)}
        .cta-box p{color:var(--text-secondary);margin-bottom:1.2rem;font-size:0.95rem}
        .cta-box .btn-primary{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;font-size:1rem;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);text-decoration:none;font-weight:600;transition:all 0.3s}
        .cta-box .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
.why-section{background:linear-gradient(135deg,rgba(67,97,238,0.03),rgba(114,9,183,0.03));border:1px solid rgba(67,97,238,0.1);border-radius:20px;padding:40px;margin-bottom:32px}
.why-section h2{font-size:1.6rem;margin-bottom:20px;color:var(--dark);font-weight:800}
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:24px}
.why-item{background:var(--bg-card);border-radius:14px;padding:22px;border:1px solid var(--border)}
.why-item-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:14px}
.why-item h3{font-size:1.1rem;margin-bottom:8px;color:var(--dark);font-weight:700}
.why-item p{font-size:.92rem;color:var(--text-secondary);margin:0;line-height:1.65}
.notif{position:fixed;top:20px;right:20px;padding:14px 20px;background:var(--bg-card);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,0.12);display:none;align-items:center;gap:10px;z-index:9999;border-left:4px solid var(--primary);max-width:360px}
.notif.success{border-left-color:var(--success)}
.notif.error{border-left-color:var(--danger)}
.notif i{font-size:1.2rem}
.notif.success i{color:var(--success)}
.notif.error i{color:var(--danger)}
.notif-text{font-size:.9rem;color:var(--dark)}
@media(max-width:900px){.toolbar-section{padding:0 8px}.toolbar-text-input{width:120px}.toolbar-size input[type=range]{width:60px}}
@media(max-width:768px){.tool-card{padding:1.5rem}.upload-zone{padding:2rem 1rem}.upload-zone h3{font-size:1.2rem}.hero-section{padding:100px 0 80px}.content-card{padding:24px}.case-grid,.why-grid,.steps-grid{grid-template-columns:1fr}.editor-footer .btn{min-width:100%}.toolbar-tool span{display:none}.toolbar-tool{padding:9px 10px}}
#app-content[data-theme="dark"]{--bg-body:#0f172a;--bg-card:#1e293b;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--border:#334155;--shadow:0 4px 24px rgba(0,0,0,0.3);--primary-light:rgba(67,97,238,0.12);--dark:#f1f5f9;--gray:#94a3b8;--light:#1e293b;--bg-gradient:linear-gradient(160deg,#0f172a 0%,#1e293b 100%)}
#app-content[data-theme="light"]{--bg-body:#f8fafc;--bg-card:#ffffff;--text-primary:#1e293b;--text-secondary:#475569;--text-muted:#94a3b8;--border:#e2e8f0;--shadow:0 4px 24px rgba(67,97,238,0.08);--primary-light:rgba(67,97,238,0.08);--dark:#1a1a2e;--gray:#6c757d;--light:#f8f9fa;--bg-gradient:linear-gradient(160deg,#f0f4ff 0%,#e8ffe8 40%,#f5f0ff 100%)}
#floatThemeToggle{position:fixed;top:100px;right:20px;width:48px;height:48px;background:var(--bg-card);border:1px solid var(--border);border-radius:50%;cursor:pointer;z-index:1000;display:flex;align-items:center;justify-content:center;color:var(--text-primary);font-size:1.2rem;box-shadow:var(--shadow);transition:all .3s}#floatThemeToggle:hover{background:var(--primary);color:#fff;border-color:var(--primary)}#backToTop{position:fixed;bottom:30px;right:20px;width:48px;height:48px;background:var(--primary);border:none;border-radius:50%;cursor:pointer;z-index:1000;display:none;align-items:center;justify-content:center;color:#fff;font-size:1.2rem;box-shadow:0 10px 20px rgba(0,0,0,0.2);transition:all .3s}#backToTop:hover{background:var(--primary-dark);transform:translateY(-3px)}#backToTop.show{display:flex}
