:root{--primary: #4361ee;--primary-dark: #3a0ca3;--secondary: #7209b7;--radius: 8px;--radius-xl: 20px;--success: #06d6a0;--danger: #e63946;--warning: #f8961e}#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)}#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)}.hero-section{padding:120px 0 80px;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:60px;background:var(--bg-body);clip-path:ellipse(55% 100% at 50% 100%)}.hero-title{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;margin-bottom:12px}.hero-desc{font-size:1.05rem;opacity:.9;max-width:560px}.tool-wrapper{margin-top:-30px;position:relative;z-index:10;padding-bottom:2rem}.tool-card{background:var(--bg-card);border-radius:var(--radius-xl);padding:2rem;box-shadow:var(--shadow);border:1px solid var(--border)}.upload-zone{border:2.5px dashed var(--primary);border-radius:16px;padding:2.5rem 1.5rem;text-align:center;background:var(--primary-light);cursor:pointer;transition:all .3s}.upload-zone:hover{border-color:var(--primary);background:rgba(67,97,238,.15)}.upload-zone.dragover{border-color:var(--success);background:rgba(52,211,153,.1)}.content-section{padding:40px 0}.content-card{background:var(--bg-card);border-radius:var(--radius-xl);padding:40px;margin-bottom:28px;box-shadow:var(--shadow);border:1px solid var(--border)}.content-card h2{font-size:1.4rem;margin-bottom:16px}.content-card p{color:var(--text-secondary);margin-bottom:14px;line-height:1.8}.content-card ul{color:var(--text-secondary);margin-bottom:14px;padding-left:20px}.content-card ul li{margin-bottom:6px}.trust-bar{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;padding:18px;margin:14px 0;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border)}.trust-item i{color:var(--primary)}.control-panel{background:var(--bg-card);border-radius:var(--radius-xl);padding:2rem;margin-top:1.5rem;border:1px solid var(--border)}.control-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));gap:1.5rem;margin-bottom:2rem}.control-group label{display:block;margin-bottom:8px;font-weight:600;font-size:.9rem;color:var(--text-primary)}.control-group select,.control-group input[type=number]{width:100%;padding:10px 12px;background:var(--bg-body);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:.9rem;cursor:pointer}.control-group input[type=range]{width:100%;accent-color:var(--primary);margin-top:4px}.range-value{display:inline-block;background:var(--primary);padding:2px 12px;border-radius:12px;font-weight:600;font-size:.8rem;color:#fff;margin-left:8px}.action-buttons{display:grid;grid-template-columns:repeat(auto-fit, minmax(180px, 1fr));gap:1rem}.btn{padding:12px 24px;border:none;border-radius:10px;font-size:.95rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:var(--bg-body);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.btn-accent{background:var(--success);color:#fff}.btn-accent:hover{opacity:.9}#floatThemeToggle{position:fixed;right:20px;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;background:var(--bg-card);color:var(--text-primary);border:1.5px solid var(--border);font-size:1.2rem;cursor:pointer;box-shadow:0 4px 20px rgba(0,0,0,.25);z-index:9999;display:flex;align-items:center;justify-content:center;transition:all .3s}#floatThemeToggle:hover{background:var(--primary);color:#fff;border-color:var(--primary)}#backToTop{position:fixed;bottom:30px;right:30px;width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;border:none;font-size:1.1rem;cursor:pointer;z-index:9999;display:none;align-items:center;justify-content:center;box-shadow:0 4px 15px rgba(67,97,238,.3);transition:all .3s}#backToTop.show{display:flex}#backToTop:hover{transform:translateY(-3px)}.case-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(320px, 1fr));gap:20px;margin:20px 0}.case-card{background:var(--bg-body);border-radius:14px;padding:22px;border:1px solid var(--border);position:relative;transition:all .2s}.case-card:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(67,97,238,.1)}.case-card h3{font-size:1rem;font-weight:600;margin-bottom:12px;padding-right:24px;color:var(--text-primary)}.case-number{position:absolute;top:12px;right:16px;font-size:2rem;font-weight:900;color:rgba(67,97,238,.08);line-height:1}.case-detail{font-size:.88rem;color:var(--text-secondary);margin-bottom:8px;line-height:1.5}.case-detail strong{color:var(--primary)}.faq-list{max-width:800px;margin:0 auto}.faq-item{border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden}.faq-item.open .faq-question{border-bottom-color:var(--border)}.faq-item.open .faq-toggle{transform:rotate(180deg)}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:18px 20px;background:var(--bg-card);border:none;cursor:pointer;font-size:.95rem;font-weight:600;color:var(--text-primary);text-align:left;transition:all .2s;border-bottom:1px solid rgba(0,0,0,0)}.faq-toggle{transition:transform .3s;color:var(--text-muted)}.faq-answer{display:none;padding:0 20px 18px;background:var(--bg-card);font-size:.9rem;color:var(--text-secondary);line-height:1.7}.editor-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:1.5rem 0}.code-editor-container,.preview-panel{display:flex;flex-direction:column;border-radius:12px;overflow:hidden;border:1px solid var(--border)}.editor-header{padding:12px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);background:var(--bg-body)}.editor-title{font-size:.85rem;font-weight:600;color:var(--text-primary);display:flex;align-items:center;gap:8px}.editor-dots{display:flex;gap:6px}.dot{width:10px;height:10px;border-radius:50%}.dot-red{background:#ef4444}.dot-yellow{background:#eab308}.dot-green{background:#22c55e}.code-editor{width:100%;min-height:350px;padding:16px;font-family:"Fira Code",Consolas,monospace;font-size:14px;line-height:1.6;border:none;resize:vertical;outline:none;tab-size:2;background:var(--bg-body);color:var(--text-primary);flex:1}.code-editor::placeholder{color:var(--text-muted)}.preview-header{padding:12px 16px;display:flex;align-items:center;justify-content:space-between;background:var(--primary)}.preview-title{color:#fff;font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:8px}.preview-content{display:flex;flex-direction:column;overflow:hidden;flex:1;transition:background .3s}#livePreview{flex:1;overflow-y:auto;padding:16px;min-height:300px;max-height:600px;transition:background .3s}#livePreview pre{margin:0;font-family:"Fira Code",Consolas,monospace;white-space:pre-wrap;word-break:break-word}#livePreview .empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:300px;color:var(--text-muted)}.theme-badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:100px;font-size:11px;font-weight:600;margin-left:8px;transition:all .3s}.theme-badge-dark{background:hsla(0,0%,100%,.2);color:#fff}.theme-badge-light{background:rgba(0,0,0,.08);color:#24292e}.usage-guide{background:var(--bg-body);border-radius:16px;padding:32px;margin:24px 0}.usage-guide h2{font-size:1.4rem;margin-bottom:24px;color:var(--text-primary)}.step{display:flex;gap:20px;margin-bottom:24px;align-items:flex-start}.step:last-child{margin-bottom:0}.step-num{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;flex-shrink:0}.step-content{flex:1}.step-content h3{font-size:1rem;margin-bottom:4px;color:var(--text-primary)}.step-content p{font-size:.9rem;color:var(--text-secondary);margin-bottom:0;line-height:1.6}.notification{position:fixed;top:20px;right:20px;padding:16px 24px;border-radius:12px;color:#fff;font-weight:600;z-index:99999;display:none;box-shadow:0 8px 30px rgba(0,0,0,.3);max-width:400px;font-size:.9rem}.loading-overlay{position:fixed;inset:0;background:rgba(15,23,42,.92);display:none;align-items:center;justify-content:center;z-index:99998;flex-direction:column;gap:16px}.loading-overlay .spinner{width:50px;height:50px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}.loading-overlay p{color:var(--text-secondary);font-size:1rem}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width: 768px){.editor-layout{grid-template-columns:1fr}.case-grid{grid-template-columns:1fr}.tool-card{padding:1.2rem}.content-card{padding:24px}.hero-section{padding:100px 0 60px}}@media(max-width: 480px){.tool-card{padding:1rem;border-radius:16px}.hero-section{padding:90px 0 50px}.hero-title{font-size:clamp(1.5rem,7vw,2.2rem)}.hero-desc{font-size:.95rem}.upload-zone{padding:2rem 1rem}.content-card{padding:20px 16px}.control-panel{padding:1.2rem}.action-buttons{grid-template-columns:1fr}.code-editor{min-height:260px}#livePreview{max-height:400px}.usage-guide{padding:24px 20px}.faq-question{padding:14px 16px;font-size:.9rem}.notification{right:10px;left:10px;max-width:none;text-align:center}#floatThemeToggle{width:38px;height:38px;right:14px}#backToTop{width:38px;height:38px;right:14px}}@media(prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}}
.related-grid{grid-template-columns:repeat(5,1fr)}@media(max-width:1100px){.related-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:640px){.related-grid{grid-template-columns:repeat(2,1fr)}}