.about-section{background-color:#fff;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,0.05);padding:30px;margin-bottom:30px}.about-section h2{color:#7957a8;font-size:1.8rem;margin-bottom:20px;border-bottom:1px solid #e0e0e0;padding-bottom:10px}.about-section h3{color:#6b41a8;font-size:1.4rem;margin:25px 0 15px}.wqi-formula{margin:25px 0;padding:20px;background-color:#f9f7fd;border-radius:8px;border-left:4px solid #7957a8;text-align:center}.math-formula{font-family:'Times New Roman',Times,serif;font-size:1.6rem;margin:15px 0;line-height:1.6;color:#333;display:inline-block}.math-formula sub,.math-formula sup{font-size:65%;line-height:0;position:relative;vertical-align:baseline}.math-formula sub{bottom:-0.25em}.math-formula sup{top:-0.5em}.formula-explanation{margin-top:20px;background-color:#f0f0f0;padding:15px;border-radius:6px;font-style:italic;color:#555;line-height:1.6;font-size:0.95rem}.score-table-container{overflow-x:auto;margin:30px 0}.score-table{width:100%;border-collapse:collapse;margin:20px 0;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.score-table th{background-color:#7957a8;color:#fff;padding:12px 15px;text-align:left;font-weight:500;position:sticky;top:0}.score-table tr:nth-child(even){background-color:#f9f7fd}.score-table td{padding:10px 15px;border-bottom:1px solid #e0e0e0;vertical-align:middle}.score-table .param-name{font-weight:bold;color:#6b41a8;min-width:120px;white-space:nowrap}.score-table .weight-col{text-align:center;font-weight:bold;color:#2196f3}.score-100{background-color:rgba(25,118,210,0.1)}.score-90{background-color:rgba(25,118,210,0.15)}.score-80{background-color:rgba(56,142,60,0.1)}.score-70{background-color:rgba(56,142,60,0.15)}.score-60{background-color:rgba(245,124,0,0.1)}.score-50{background-color:rgba(245,124,0,0.15)}.score-40{background-color:rgba(245,124,0,0.2)}.score-30{background-color:rgba(211,47,47,0.1)}.score-20{background-color:rgba(211,47,47,0.15)}.score-10{background-color:rgba(211,47,47,0.2)}.score-0{background-color:rgba(211,47,47,0.25)}.features-container{display:flex;justify-content:space-between;gap:30px;margin:40px 0;flex-wrap:wrap}.feature-card{flex:1;min-width:30%;background-color:#fff;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,0.05);padding:25px;transition:transform 0.3s,box-shadow 0.3s;border-top:3px solid transparent}.feature-card:nth-child(1){border-top-color:#4caf50}.feature-card:nth-child(2){border-top-color:#ff9800}.feature-card:nth-child(3){border-top-color:#2196f3}.feature-card:hover{transform:translateY(-5px);box-shadow:0 5px 15px rgba(0,0,0,0.1)}.feature-card h3{color:#6b41a8;margin-bottom:15px;font-size:1.3rem;display:flex;align-items:center}.feature-card p{color:#666;line-height:1.5;margin-bottom:0}.contact-info{background-color:#f9f7fd;border-radius:8px;padding:30px;margin-top:40px;border-left:4px solid #7957a8}.contact-info h3{color:#6b41a8;margin-bottom:20px}.contact-details{display:flex;flex-wrap:wrap;gap:25px;justify-content:space-between}.contact-item{flex:1;min-width:250px}.contact-item h4{color:#6b41a8;margin-bottom:10px;font-size:1.1rem}.contact-item p{color:#666;line-height:1.6;margin-bottom:5px}@media (max-width:768px){.about-section{padding:20px}.score-table{font-size:0.9rem}.score-table th,.score-table td{padding:8px}.feature-card{min-width:100%}}.fraction{display:inline-block;vertical-align:middle;text-align:center;margin:0 5px}.numerator,.denominator{display:block;text-align:center;padding:0 3px}.numerator{border-bottom:1px solid #333;margin-bottom:1px}.denominator{border-top:none}