:root{--page-max: 800px;--text: #333;--heading: #2c3e50;--accent: #e74c3c;--accent2: #c0392b;--line: #eee;--panel: #f9f9f9;--panel2: #fff6f6;--quote: #fff8f8;--formula: #f4f4f4;--info: #e8f4f8;--glass-bg: rgba(255, 255, 255, .55);--glass-border: rgba(0, 0, 0, .08);--glass-shadow: 0 10px 28px rgba(0,0,0,.1);--glass-radius: 24px}*,*:before,*:after{box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--text);max-width:var(--page-max);margin:0 auto;padding:20px}h1{color:var(--heading);border-bottom:2px solid var(--line);padding-bottom:10px;margin:0 0 18px}h2{color:var(--accent);margin:40px 0 14px}h3{color:var(--heading);margin:30px 0 10px}p{margin:0 0 15px}ul{background-color:var(--panel);padding:20px 40px;border-radius:8px;margin:16px 0 22px}li{margin-bottom:10px}blockquote{border-left:5px solid var(--accent);background-color:var(--quote);margin:20px 0;padding:15px 20px;font-style:italic;border-radius:8px}.formula-box{background-color:var(--formula);padding:20px;border-radius:8px;text-align:center;margin:20px 0;overflow-x:auto}.research-box{background-color:var(--panel2);border-left:5px solid var(--accent);padding:20px 40px;margin:30px 0;border-radius:8px}.research-box h2{margin:0 0 12px;text-align:left;color:var(--accent)}.research-box ul{background-color:transparent;padding-left:20px;list-style-position:outside;margin:0}.user-guide{background-color:var(--info);padding:15px;border-radius:6px;font-size:.9em;margin-bottom:15px;border-left:4px solid #3498db}.chart-placeholder{background-color:#eee;height:300px;display:flex;align-items:center;justify-content:center;border:2px dashed #ccc;margin-bottom:40px;color:#777;font-weight:700;border-radius:8px}.cta-wrapper{min-height:60vh;display:flex;justify-content:center;align-items:center}.cta-container{display:flex;gap:36px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:64px;margin-bottom:120px}.cta-button a{display:inline-flex;justify-content:center;align-items:center;min-width:180px;padding:12px 16px;font-weight:600;text-decoration:none;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:999px;box-shadow:0 8px 22px #e74c3c40;transition:transform .2s ease,box-shadow .2s ease}.cta-button a:hover{transform:translateY(-3px);box-shadow:0 14px 30px #e74c3c59}.glass{background:var(--glass-bg);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--glass-border);border-radius:var(--glass-radius);box-shadow:var(--glass-shadow)}.section-card{padding:40px 50px;margin:40px 0}.section-card h1,.section-card h2{margin-top:0}.section-card p+p{margin-top:14px}.section-card ul{margin-top:18px}.section-card blockquote{margin-top:20px}.research-box.glass{background:var(--glass-bg);border-left:5px solid var(--accent)}.cta-container.glass{padding:22px;border-radius:22px}