: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)}.related-tools{padding:30px 0}.related-tools h2{text-align:center;font-size:1.5rem;margin-bottom:8px}.related-tools p{text-align:center;color:var(--text-secondary);margin-bottom:24px}.related-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(160px, 1fr));gap:12px}.related-card{display:block;padding:14px;background:var(--bg-card);border-radius:8px;border:1px solid var(--border);text-decoration:none;transition:all .2s}.related-card:hover{border-color:var(--primary);transform:translateY(-2px)}.related-name{display:block;font-size:.85rem;font-weight:600;color:var(--text-primary);margin-bottom:2px}.related-desc{font-size:.75rem;color:var(--text-muted)}.editor-layout{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:1.5rem 0;height:500px}@media(max-width: 992px){.editor-layout{grid-template-columns:1fr;height:auto}}.code-editor{display:flex;flex-direction:column;background:var(--bg-body);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden}.editor-header{display:flex;align-items:center;justify-content:space-between;background:var(--bg-card);padding:12px 16px;border-bottom:1px solid var(--border)}.editor-title{display:flex;align-items:center;gap:8px;font-weight:600;font-size:.9rem}.editor-window-controls{display:flex;gap:6px}.window-btn{width:12px;height:12px;border-radius:50%}.window-close{background:#ff5f56}.window-minimize{background:#ffbd2e}.window-maximize{background:#27c93f}textarea#markdownInput{flex:1;width:100%;padding:1.5rem;background:rgba(0,0,0,0);border:none;color:var(--text-primary);font-family:"Courier New",monospace;font-size:15px;line-height:1.6;resize:none;outline:none}.preview-panel{display:flex;flex-direction:column;background:var(--bg-body);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden}.preview-content{flex:1;padding:1.5rem;overflow-y:auto}.markdown-preview h1{font-size:2em;border-bottom:2px solid var(--primary);padding-bottom:.3em;margin:1em 0}.markdown-preview h2{font-size:1.5em;border-bottom:1px solid var(--border);padding-bottom:.3em;margin:1em 0}.markdown-preview code{background:rgba(99,102,241,.15);padding:.2em .4em;border-radius:3px;font-family:"Courier New",monospace}.markdown-preview[data-preview-theme=light]{background:#fff;color:#1e293b;padding:1rem;border-radius:8px}.markdown-preview[data-preview-theme=light] h1,.markdown-preview[data-preview-theme=light] h2,.markdown-preview[data-preview-theme=light] h3{color:#1e293b}.markdown-preview[data-preview-theme=light] p{color:#475569}.markdown-preview[data-preview-theme=light] code{background:rgba(99,102,241,.1)}.markdown-preview[data-preview-theme=github]{background:#fff;color:#24292e;padding:1rem;border-radius:8px;border:1px solid #e1e4e8}.markdown-preview[data-preview-theme=github] h1{border-bottom-color:#e1e4e8}.markdown-preview[data-preview-theme=github] h2{border-bottom-color:#e1e4e8}.markdown-preview[data-preview-theme=github] code{background:rgba(27,31,35,.05)}.markdown-preview[data-preview-theme=neon]{background:#0a0a1a;color:#fff;padding:1rem;border-radius:8px;box-shadow:0 0 30px rgba(0,255,255,.1);border:1px solid rgba(0,255,255,.2)}.markdown-preview[data-preview-theme=neon] h1{color:#f0f;text-shadow:0 0 10px rgba(255,0,255,.3)}.markdown-preview[data-preview-theme=neon] h2{color:aqua}.markdown-preview[data-preview-theme=neon] h3{color:#ff0}.markdown-preview[data-preview-theme=neon] p{color:hsla(0,0%,100%,.8)}.markdown-preview[data-preview-theme=neon] code{background:rgba(255,0,255,.1);color:#f0f}.markdown-preview[data-preview-theme=professional]{background:#fff;color:#333;padding:1rem;border-radius:8px;border:1px solid #ddd;font-family:Georgia,serif}.markdown-preview[data-preview-theme=professional] h1{color:#1a1a1a;border-bottom-color:#ccc}.markdown-preview[data-preview-theme=professional] h2{color:#2c2c2c;border-bottom-color:#eee}.markdown-preview[data-preview-theme=professional] p{color:#555}.markdown-preview[data-preview-theme=professional] code{background:#f5f5f5;color:#333}.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{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;box-shadow:0 4px 16px rgba(67,97,238,.3);opacity:0;transform:translateY(20px);transition:all .3s;z-index:999}#backToTop.show{opacity:1;transform:translateY(0)}.notification{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);padding:14px 24px;border-radius:10px;color:#fff;font-weight:500;z-index:9998;box-shadow:0 8px 30px rgba(0,0,0,.3);font-size:.95rem}.loading-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(15,23,42,.9);z-index:9999;align-items:center;justify-content:center;flex-direction:column;gap:16px}.loading-spinner{width:48px;height:48px;border:4px solid hsla(0,0%,100%,.2);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#app-content[data-theme=light]{--bg-body: #f8fafc;--bg-card: #fff;--text-primary: #1e293b;--text-secondary: #475569;--text-muted: #94a3b8;--border: #e2e8f0;--shadow: 0 4px 24px rgba(0,0,0,0.08)}.faq-question{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:16px 20px;font-size:1rem;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;width:100%;text-align:left;color:var(--text-primary);transition:all .2s}.faq-question:hover{border-color:var(--primary)}.faq-answer{padding:16px 20px;color:var(--text-secondary);font-size:.92rem;line-height:1.7;display:none}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-toggle{transform:rotate(45deg)}.faq-toggle{transition:transform .3s}.case-card{background:var(--bg-card);border-radius:12px;padding:24px;border:1px solid var(--border)}.case-card h3{font-size:1rem;margin-bottom:8px;color:var(--text-primary)}.case-number{background:linear-gradient(135deg, #4361ee, #3a0ca3);color:#fff;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:12px}.case-detail{color:var(--text-secondary);font-size:.9rem;margin-bottom:6px}.privacy-note{background:rgba(67,97,238,.03);border:1px solid rgba(67,97,238,.1)}@media(max-width: 480px){.hero-section{padding:80px 0 60px}.hero-desc{font-size:.95rem}.tool-card,.content-card,.control-panel{padding:1.25rem;border-radius:16px}.content-card{padding:24px;margin-bottom:20px}.upload-zone{padding:1.75rem 1rem}.control-grid,.action-buttons,.editor-layout{grid-template-columns:1fr}.btn{padding:10px 16px;font-size:.9rem}#floatThemeToggle{right:14px;width:38px;height:38px;font-size:1rem}#backToTop{right:16px;bottom:20px;width:36px;height:36px}.notification{left:16px;right:16px;bottom:16px;transform:none;text-align:center}}@media(prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}}