:root{--primary-color:#4361ee;--secondary-color:#3a0ca3;--accent-color:#7209b7;--light-color:#f8f9fa;--dark-color:#212529;--gray-color:#6c757d;--success-color:#4cc9f0;--warning-color:#f72585;--sql-color:#e95420;--java-color:#007396;--border-radius:12px;--box-shadow:0 8px 24px rgba(0,0,0,0.1);--transition:all 0.3s ease}*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI','Microsoft YaHei',sans-serif}body{background-color:#f0f2f5;color:var(--dark-color);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}header{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:white;padding:20px 0;box-shadow:0 4px 12px rgba(0,0,0,0.1);position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:15px}.logo i{font-size:2.5rem}.logo h1{font-size:1.8rem;font-weight:700}.logo span{color:var(--success-color)}nav ul{display:flex;list-style:none;gap:25px}nav a{color:white;text-decoration:none;font-weight:600;font-size:1.1rem;padding:8px 12px;border-radius:6px;transition:var(--transition)}nav a:hover,nav a.active{background-color:rgba(255,255,255,0.2)}.mobile-menu-btn{display:none;font-size:1.5rem;background:none;border:none;color:white;cursor:pointer}main{padding:40px 0;flex:1}.tool-section{display:none;animation:fadeIn 0.5s ease}.tool-section.active{display:block}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.section-title{font-size:1.8rem;margin-bottom:25px;color:var(--secondary-color);display:flex;align-items:center;gap:10px}.section-title i{color:var(--accent-color)}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px;margin-bottom:40px}.tool-card{background:white;border-radius:var(--border-radius);padding:25px;box-shadow:var(--box-shadow);transition:var(--transition);cursor:pointer;border:2px solid transparent}.tool-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.tool-card i{font-size:2.5rem;color:var(--primary-color);margin-bottom:15px}.tool-card h3{font-size:1.4rem;margin-bottom:10px;color:var(--dark-color)}.tool-card p{color:var(--gray-color);margin-bottom:20px}.use-tool-btn{background-color:var(--primary-color);color:white;border:none;padding:10px 20px;border-radius:6px;font-weight:600;cursor:pointer;transition:var(--transition);width:100%}.use-tool-btn:hover{background-color:var(--secondary-color)}.tool-detail{background:white;border-radius:var(--border-radius);padding:30px;box-shadow:var(--box-shadow);margin-top:30px}.tool-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px;padding-bottom:15px;border-bottom:2px solid #f0f2f5}.tool-header h2{font-size:1.6rem;color:var(--secondary-color)}.close-tool{background:none;border:none;font-size:1.5rem;color:var(--gray-color);cursor:pointer;transition:var(--transition)}.close-tool:hover{color:var(--warning-color)}.shortcut-container{display:flex;flex-direction:column;gap:20px}.shortcut-intro{background:#f8f9fa;border-radius:var(--border-radius);padding:20px;margin-bottom:10px}.shortcut-intro p{margin-bottom:10px}.shortcut-intro .highlight{color:var(--primary-color);font-weight:600}.shortcut-platform{margin-top:30px}.platform-card{background:white;border-radius:var(--border-radius);padding:25px;box-shadow:0 4px 12px rgba(0,0,0,0.05);margin-bottom:20px;border-left:4px solid var(--primary-color)}.platform-header{display:flex;align-items:center;gap:15px;margin-bottom:20px}.platform-icon{font-size:2.5rem;color:var(--primary-color)}.platform-title{font-size:1.5rem;color:var(--secondary-color)}.step-list{list-style-type:none;counter-reset:step-counter}.step-item{counter-increment:step-counter;margin-bottom:25px;padding-left:60px;position:relative;min-height:50px}.step-item:last-child{margin-bottom:0}.step-item:before{content:counter(step-counter);position:absolute;left:0;top:0;width:40px;height:40px;background:var(--primary-color);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.2rem}.step-title{font-weight:600;margin-bottom:8px;color:var(--dark-color);font-size:1.1rem}.step-description{color:var(--gray-color);margin-bottom:10px}.step-image{background:#f8f9fa;border-radius:8px;padding:15px;margin-top:10px;text-align:center;font-style:italic;color:var(--gray-color);border:1px dashed #dee2e6}.step-image img{max-width:100%;border-radius:6px;margin-top:10px;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.shortcut-actions{display:flex;gap:15px;flex-wrap:wrap;margin-top:30px}.action-btn{padding:12px 24px;border-radius:6px;border:none;font-weight:600;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:8px}.btn-primary{background-color:var(--primary-color);color:white}.btn-primary:hover{background-color:var(--secondary-color)}.btn-secondary{background-color:#e9ecef;color:var(--dark-color)}.btn-secondary:hover{background-color:#dee2e6}.btn-success{background-color:var(--success-color);color:white}.btn-success:hover{background-color:#2ab3d7}.shortcut-preview{background:linear-gradient(135deg,var(--primary-color),var(--accent-color));color:white;border-radius:var(--border-radius);padding:25px;margin-top:20px}.preview-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.preview-title{font-size:1.4rem;font-weight:600}.preview-content{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.preview-icon{font-size:3rem;background:rgba(255,255,255,0.2);padding:20px;border-radius:50%;width:80px;height:80px;display:flex;align-items:center;justify-content:center}.preview-details{flex:1;min-width:250px}.preview-name{font-size:1.3rem;font-weight:700;margin-bottom:5px}.preview-url{font-family:'Consolas','Monaco','Courier New',monospace;font-size:0.9rem;opacity:0.9;word-break:break-all}.custom-shortcut{background:#f8f9fa;border-radius:var(--border-radius);padding:20px;margin-top:30px}.custom-shortcut h3{margin-bottom:15px;color:var(--secondary-color);display:flex;align-items:center;gap:8px}.custom-form{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:15px;margin-top:15px}.form-group{display:flex;flex-direction:column;gap:5px}.form-group label{font-weight:600;font-size:0.9rem;color:var(--gray-color)}.form-input{padding:10px 12px;border:2px solid #e0e0e0;border-radius:6px;font-size:1rem;transition:var(--transition)}.form-input:focus{outline:none;border-color:var(--primary-color)}.form-select{padding:10px 12px;border:2px solid #e0e0e0;border-radius:6px;font-size:1rem;background:white;transition:var(--transition)}.form-select:focus{outline:none;border-color:var(--primary-color)}@media (max-width:768px){.header-content{flex-direction:column;gap:20px}nav ul{flex-direction:column;gap:10px;text-align:center}.mobile-menu-btn{display:block;position:absolute;top:25px;right:20px}.mobile-menu{display:none;width:100%;margin-top:15px}.mobile-menu.show{display:block}.step-item{padding-left:50px}.preview-content{flex-direction:column;text-align:center}.preview-details{min-width:100%}.action-btn{width:100%;justify-content:center}.custom-form{grid-template-columns:1fr}}.generator-result{background:white;border-radius:var(--border-radius);padding:20px;margin-top:20px;border:2px dashed var(--primary-color);text-align:center;display:none}.generator-result.show{display:block;animation:fadeIn 0.5s ease}.result-icon{font-size:3rem;color:var(--primary-color);margin-bottom:15px}.result-title{font-size:1.3rem;margin-bottom:10px;color:var(--secondary-color)}.result-description{color:var(--gray-color);margin-bottom:20px}.file-info{background:#f8f9fa;border-radius:8px;padding:15px;margin-top:15px;text-align:left}.file-info h4{margin-bottom:10px;color:var(--dark-color)}.file-info pre{background:#e9ecef;padding:10px;border-radius:4px;overflow-x:auto;font-family:'Consolas','Monaco','Courier New',monospace;font-size:0.9rem}.note-box{background:#fff3cd;border-left:4px solid #ffc107;padding:15px;border-radius:6px;margin-top:20px}.note-box h4{color:#856404;display:flex;align-items:center;gap:8px;margin-bottom:8px}.note-box p{color:#856404;font-size:0.95rem}footer{background-color:var(--dark-color);color:white;padding:40px 0 20px;margin-top:auto}.footer-content{display:flex;flex-wrap:wrap;justify-content:space-between;gap:40px}.footer-section{flex:1;min-width:250px}.footer-section h3{font-size:1.3rem;margin-bottom:20px;color:var(--success-color)}.footer-links{list-style:none}.footer-links li{margin-bottom:10px}.footer-links a{color:#ddd;text-decoration:none;transition:var(--transition)}.footer-links a:hover{color:var(--success-color)}.copyright{text-align:center;margin-top:40px;padding-top:20px;border-top:1px solid #444;color:#aaa;font-size:0.9rem}@media (max-width:768px){.footer-content{flex-direction:column;gap:30px}.footer-section{width:100%;text-align:center}}