.about-hero{padding:130px 0 80px;text-align:center;background:var(--bg-secondary);border-bottom:1px solid var(--border)}.about-hero-tag{display:inline-block;padding:4px 14px;background:rgba(0,102,255,.1);border:1px solid rgba(0,102,255,.2);border-radius:100px;font-size:12px;font-weight:600;color:var(--primary-light);letter-spacing:1px;text-transform:uppercase;margin-bottom:24px}.about-hero-title{font-size:clamp(32px,5vw,52px);font-weight:900;line-height:1.2;letter-spacing:-1px;margin-bottom:24px}.about-hero-desc{font-size:17px;color:var(--text-secondary);line-height:1.8;max-width:700px;margin:0 auto}.pillars-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:28px;gap:28px;max-width:960px;margin:0 auto}.pillar-card{text-align:center;padding:40px 28px;border-radius:var(--radius-lg);border:1px solid var(--border);transition:border-color var(--transition),transform var(--transition)}.pillar-card:hover{border-color:var(--primary);transform:translateY(-3px)}.pillar-icon{width:56px;height:56px;border-radius:50%;background:rgba(0,102,255,.1);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:var(--primary-light);transition:background var(--transition),transform var(--transition)}.pillar-card:hover .pillar-icon{background:rgba(0,102,255,.18);transform:scale(1.05)}.pillar-title{font-size:20px;font-weight:800;margin-bottom:10px;letter-spacing:-.3px}.pillar-desc{font-size:14px;color:var(--text-secondary);line-height:1.7}.about-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:24px;gap:24px;max-width:1000px;margin:0 auto}.about-stat-card{text-align:center;padding:36px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:border-color var(--transition)}.about-stat-card:hover{border-color:var(--primary)}.about-stat-value{font-size:40px;font-weight:900;background:var(--gradient-1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:6px}.about-stat-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:4px}.about-stat-sub{font-size:12px;color:var(--text-muted)}.about-section-heading{display:flex;align-items:center;gap:14px;font-size:28px;font-weight:800;margin-bottom:28px}.about-section-icon{width:48px;height:48px;border-radius:12px;background:rgba(0,102,255,.1);display:flex;align-items:center;justify-content:center;color:var(--primary-light);flex-shrink:0}.about-text{font-size:15px;color:var(--text-secondary);line-height:1.85;margin-bottom:14px}.about-text strong{color:var(--text)}.about-text a{color:var(--primary-light);text-decoration:none;font-weight:600;transition:color var(--transition)}.about-text a:hover{color:var(--primary)}.about-list{list-style:none;padding:0}.about-list li{position:relative;padding-left:24px;margin-bottom:14px;font-size:14px;color:var(--text-secondary);line-height:1.8}.about-list li:before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--primary-light)}.about-list li strong{color:var(--text)}.about-list li a{color:var(--primary-light);text-decoration:none;font-weight:600;transition:color var(--transition)}.about-list li a:hover{color:var(--primary)}.source-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:20px;gap:20px;max-width:880px;margin:0 auto}.source-card{padding:28px 24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:border-color var(--transition),transform var(--transition)}.source-card:hover{border-color:var(--primary);transform:translateY(-2px)}.source-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}.source-name{font-size:18px;font-weight:700;margin-bottom:8px;letter-spacing:-.3px}.source-desc{font-size:13.5px;color:var(--text-secondary);line-height:1.75}.source-card:first-child .source-name{color:#cb3837}.source-card:nth-child(2) .source-name{color:#333}.source-card:nth-child(3) .source-name{color:#21759b}.source-card:nth-child(4) .source-name{color:#06f}.cache-levels{display:flex;flex-direction:column;gap:16px}.cache-level-card{padding:24px;background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);border-left:3px solid var(--primary-light);transition:border-color var(--transition)}.cache-level-card:hover{border-left-color:var(--primary)}.cache-level-head{display:flex;align-items:center;gap:14px;margin-bottom:10px}.cache-level-badge{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;font-weight:800;flex-shrink:0}.cache-level-name{font-size:15px;font-weight:700;color:var(--text)}.cache-level-duration{font-size:12px;color:var(--text-muted);background:var(--bg-secondary);padding:2px 10px;border-radius:100px;margin-left:6px}.cache-level-desc{font-size:13.5px;color:var(--text-secondary);line-height:1.7;padding-left:46px}.compare-feature-grid{display:flex;flex-direction:column;gap:1px;background:var(--border);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border)}.compare-row{display:flex;align-items:center;background:var(--bg-card);transition:background var(--transition)}.compare-row:hover{background:var(--bg-secondary)}.compare-row-label{width:150px;flex-shrink:0;padding:14px 20px;font-size:13.5px;font-weight:600;color:var(--text);border-right:1px solid var(--border)}.compare-row-cells{display:flex;flex:1 1}.compare-cell{flex:1 1;padding:14px 20px;font-size:13.5px;color:var(--text-secondary);text-align:center}.compare-cell.highlight{color:var(--primary-light);font-weight:600;background:rgba(0,102,255,.03)}.compare-win .compare-cell.highlight:before{content:"✓ ";color:#22c55e}.community-stats{display:flex;gap:40px;margin-top:28px;flex-wrap:wrap}.community-stat-num{font-size:28px;font-weight:900;background:var(--gradient-1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.community-stat-label{font-size:13px;color:var(--text-muted);margin-top:4px}@media (max-width:768px){.about-hero{padding:100px 24px 60px}.about-hero-title{font-size:28px}.about-hero-desc{font-size:15px}.pillars-grid{grid-template-columns:1fr;max-width:400px}.about-stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}.about-stat-card{padding:24px 12px}.about-stat-value{font-size:30px}.about-section-heading{font-size:22px;margin-bottom:20px}.about-section-icon{width:40px;height:40px;border-radius:10px}.about-section-icon svg{width:22px;height:22px}.source-grid{grid-template-columns:1fr}.cache-level-desc{padding-left:0;margin-top:8px}.cache-level-head{gap:10px}.compare-row{flex-direction:column;align-items:stretch}.compare-row-label{width:100%;padding:12px 16px;border-right:none;border-bottom:1px solid var(--border);background:var(--bg-secondary)}.compare-row-cells{display:flex}.compare-cell{padding:10px 16px;font-size:12.5px}.community-stats{gap:24px;justify-content:center}}@media (max-width:480px){.about-stats-grid{grid-template-columns:1fr 1fr;gap:8px}.about-stat-value{font-size:26px}}