.fault-hub,.brand-fault-hub,.fault-article{--fault-accent:#0071e3;--fault-accent-light:#40a9ff;--fault-severity-common:#5e5ce6;--fault-severity-serious:#ff9500;--fault-severity-critical:#ff3b30}.fault-hub{background:var(--color-bg)}.fault-hub-hero{text-align:center;background:linear-gradient(#0a0a0a 0%,#1a1a1a 100%);flex-direction:column;justify-content:center;align-items:center;min-height:50vh;padding:120px 24px 80px;display:flex;position:relative;overflow:hidden}.fault-hub-hero:after{content:"";pointer-events:none;background:radial-gradient(circle,#0071e314 0%,#0000 70%);width:600px;height:600px;position:absolute;top:0;left:50%;transform:translate(-50%)}.fault-hub-hero h1{letter-spacing:-.03em;background:linear-gradient(135deg,#fff 0%,#a5a5a5 100%);-webkit-text-fill-color:transparent;z-index:1;-webkit-background-clip:text;background-clip:text;margin-bottom:16px;font-size:clamp(2.5rem,6vw,4rem);font-weight:700;line-height:1.1;position:relative}.fault-hub-hero p{color:#86868b;z-index:1;max-width:560px;font-size:1.2rem;line-height:1.5;position:relative}.fault-hub-search{z-index:1;width:100%;max-width:500px;margin:32px auto 0;position:relative}.fault-hub-brands{grid-template-columns:repeat(3,1fr);gap:24px;max-width:1200px;margin:0 auto;padding:80px 24px;display:grid}.fault-hub-brand-card{background:var(--color-surface);color:inherit;border:1px solid var(--border-color);border-radius:20px;flex-direction:column;padding:32px 28px;text-decoration:none;transition:transform .3s,box-shadow .3s;display:flex;position:relative;overflow:hidden}.fault-hub-brand-card:hover{transform:scale(1.02);box-shadow:0 12px 40px #00000014}[data-theme=dark] .fault-hub-brand-card:hover{box-shadow:0 12px 40px #0006}.fault-hub-brand-card .brand-accent{background:var(--brand-color,var(--fault-accent));border-radius:20px 20px 0 0;height:4px;position:absolute;top:0;left:0;right:0}.fault-hub-brand-card h3{color:var(--color-text);letter-spacing:-.02em;margin-top:12px;margin-bottom:8px;font-size:1.375rem;font-weight:700}.fault-hub-brand-card p{color:var(--color-text-muted);font-size:.925rem;line-height:1.5}.fault-hub-brand-card .brand-card-arrow{color:var(--brand-color,var(--fault-accent));align-items:center;gap:4px;margin-top:auto;padding-top:20px;font-size:.875rem;font-weight:500;transition:gap .3s;display:inline-flex}.fault-hub-brand-card:hover .brand-card-arrow{gap:8px}.brand-fault-hub{background:var(--color-bg)}.brand-fault-hero{text-align:center;background:var(--color-bg);flex-direction:column;justify-content:center;align-items:center;min-height:40vh;padding:120px 24px 64px;display:flex;position:relative;overflow:hidden}.brand-fault-hero:before{content:"";background:radial-gradient(circle, var(--brand-color-glow,#0071e30f) 0%, transparent 70%);pointer-events:none;width:800px;height:800px;position:absolute;top:-50%;left:50%;transform:translate(-50%)}.brand-fault-hero h1{letter-spacing:-.03em;color:var(--color-text);z-index:1;margin-bottom:16px;font-size:clamp(2rem,5vw,3.25rem);font-weight:700;line-height:1.15;position:relative}.brand-fault-hero h1 .brand-name-accent{background:linear-gradient(135deg, var(--brand-color,#0071e3) 0%, var(--brand-color-light,#40a9ff) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.brand-fault-hero p{color:var(--color-text-muted);z-index:1;max-width:580px;font-size:1.1rem;line-height:1.6;position:relative}.fault-back-link{color:var(--color-text-muted);z-index:1;align-items:center;gap:6px;margin-bottom:24px;font-size:.85rem;font-weight:500;text-decoration:none;transition:color .2s,gap .2s;display:inline-flex;position:relative}.fault-back-link:hover{color:var(--brand-color,var(--fault-accent));gap:8px}.brand-fault-summary{max-width:800px;margin:0 auto;padding:0 24px 16px}.brand-fault-summary-inner{background:var(--color-surface);border:1px solid var(--border-color);border-left:4px solid var(--brand-color,var(--fault-accent));border-radius:16px;padding:24px 28px}.brand-fault-summary-inner p{color:var(--color-text-muted);margin:0;font-size:1rem;line-height:1.65}.brand-fault-articles-heading{letter-spacing:-.02em;color:var(--color-text);grid-column:1/-1;margin:0 0 8px;font-size:1.75rem;font-weight:700}.fault-card-arrow{color:var(--brand-color,var(--fault-accent));white-space:nowrap;align-items:center;gap:6px;margin-left:auto;font-size:.85rem;font-weight:500;transition:gap .3s;display:inline-flex}.fault-card:hover .fault-card-arrow{gap:10px}.brand-fault-articles{grid-template-columns:repeat(2,1fr);gap:24px;max-width:1200px;margin:0 auto;padding:64px 24px 80px;display:grid}.fault-card{background:var(--color-surface);color:inherit;border:1px solid var(--border-color);border-radius:20px;flex-direction:column;padding:32px 28px;text-decoration:none;transition:transform .3s,box-shadow .3s;display:flex}.fault-card:hover{transform:translateY(-4px);box-shadow:0 16px 48px #00000014}[data-theme=dark] .fault-card:hover{box-shadow:0 16px 48px #0006}.fault-card-icon{background:linear-gradient(135deg, var(--brand-color,#ff3b30) 0%, var(--brand-color-light,#ff6b6b) 100%);color:#fff;border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:20px;display:flex}.fault-card-icon svg{width:24px;height:24px}.fault-card h3{color:var(--color-text);letter-spacing:-.02em;margin-bottom:10px;font-size:1.25rem;font-weight:700;line-height:1.3}.fault-card-excerpt{color:var(--color-text-muted);-webkit-line-clamp:3;-webkit-box-orient:vertical;flex:1;font-size:.925rem;line-height:1.6;display:-webkit-box;overflow:hidden}.fault-card-footer{border-top:1px solid var(--border-color);flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;padding-top:16px;display:flex}.fault-severity{letter-spacing:.02em;white-space:nowrap;border-radius:980px;align-items:center;gap:6px;padding:4px 12px;font-size:.75rem;font-weight:600;display:inline-flex}.fault-severity--common{color:var(--fault-severity-common);background:#5e5ce61a}.fault-severity--serious{color:var(--fault-severity-serious);background:#ff95001a}.fault-severity--critical{color:var(--fault-severity-critical);background:#ff3b301a}[data-theme=dark] .fault-severity--common{background:#5e5ce626}[data-theme=dark] .fault-severity--serious{background:#ff950026}[data-theme=dark] .fault-severity--critical{background:#ff3b3026}.fault-tags{flex-wrap:wrap;gap:6px;margin-left:auto;display:flex}.fault-tag{background:var(--color-bg);border:1px solid var(--border-color);color:var(--color-text-muted);white-space:nowrap;border-radius:980px;padding:3px 10px;font-size:.7rem;font-weight:500;display:inline-block}.fault-article{background:var(--color-bg);padding-top:80px}.fault-article-header{text-align:center;max-width:720px;margin:0 auto;padding:40px 24px 32px}.fault-article-header h1{letter-spacing:-.03em;color:var(--color-text);margin-bottom:16px;font-size:clamp(2rem,5vw,3rem);font-weight:700;line-height:1.15}.fault-article-meta{flex-wrap:wrap;justify-content:center;align-items:center;gap:16px;margin-bottom:20px;display:flex}.fault-article-brand{text-transform:uppercase;letter-spacing:.08em;color:var(--brand-color,var(--fault-accent));font-size:.75rem;font-weight:600}.fault-article-date{color:var(--color-text-muted);font-size:.8rem}.fault-article-meta .fault-severity{font-size:.7rem}.fault-article-content{max-width:720px;margin:0 auto;padding:0 24px 64px}.fault-article-content h2{letter-spacing:-.02em;color:var(--color-text);margin:48px 0 16px;font-size:1.75rem;font-weight:700}.fault-article-content h3{color:var(--color-text);margin:32px 0 12px;font-size:1.25rem;font-weight:600}.fault-article-content p{color:var(--color-text);margin-bottom:16px;font-size:1.05rem;line-height:1.75}.fault-article-content ul,.fault-article-content ol{margin-bottom:16px;padding-left:24px}.fault-article-content li{color:var(--color-text);margin-bottom:8px;font-size:1.05rem;line-height:1.75}.fault-article-content strong{color:var(--color-text);font-weight:600}.fault-article-content a{color:var(--color-primary);border-bottom:1px solid #0000;text-decoration:none;transition:border-color .2s}.fault-article-content a:hover{border-bottom-color:currentColor}.fault-symptoms{background:var(--color-surface);border-left:4px solid var(--fault-severity-serious);border-radius:16px;margin:32px 0;padding:28px 28px 28px 24px}.fault-symptoms h3{color:var(--color-text);margin:0 0 16px;font-size:1.125rem;font-weight:700}.fault-symptoms ul{margin:0;padding:0;list-style:none}.fault-symptoms li{color:var(--color-text);margin-bottom:8px;padding-left:24px;font-size:.975rem;line-height:1.7;position:relative}.fault-symptoms li:before{content:"";background:var(--fault-severity-serious);border-radius:50%;width:8px;height:8px;position:absolute;top:10px;left:0}.fault-symptoms li:last-child{margin-bottom:0}.fault-causes{background:var(--color-surface);border-left:4px solid var(--fault-severity-common);border-radius:16px;margin:32px 0;padding:28px 28px 28px 24px}.fault-causes h3{color:var(--color-text);margin:0 0 16px;font-size:1.125rem;font-weight:700}.fault-causes ul{margin:0;padding:0;list-style:none}.fault-causes li{color:var(--color-text);margin-bottom:8px;padding-left:24px;font-size:.975rem;line-height:1.7;position:relative}.fault-causes li:before{content:"";background:var(--fault-severity-common);border-radius:50%;width:8px;height:8px;position:absolute;top:10px;left:0}.fault-causes li:last-child{margin-bottom:0}.fault-diy{margin:40px 0}.fault-diy h3{color:var(--color-text);margin:0 0 24px;font-size:1.25rem;font-weight:700}.fault-diy-steps{flex-direction:column;gap:16px;display:flex}.fault-diy-step{background:var(--color-surface);border:1px solid var(--border-color);border-radius:16px;align-items:flex-start;gap:20px;padding:24px;transition:transform .3s,box-shadow .3s;display:flex}.fault-diy-step:hover{transform:translateY(-2px);box-shadow:0 6px 24px #0000000d}[data-theme=dark] .fault-diy-step:hover{box-shadow:0 6px 24px #0000004d}.fault-diy-number{background:linear-gradient(135deg, var(--fault-accent) 0%, var(--fault-accent-light) 100%);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:1rem;font-weight:700;display:flex}.fault-diy-step-body{flex:1}.fault-diy-step-body h4{color:var(--color-text);margin-bottom:6px;font-size:1.05rem;font-weight:600}.fault-diy-step-body p{color:var(--color-text-muted);margin:0;font-size:.95rem;line-height:1.6}.fault-when-to-service{text-align:center;background:linear-gradient(135deg,#0071e30f 0%,#0071e305 100%);border:1px solid #0071e31f;border-radius:20px;margin:48px 0;padding:40px 36px}[data-theme=dark] .fault-when-to-service{background:linear-gradient(135deg,#2997ff14 0%,#2997ff05 100%);border-color:#2997ff26}.fault-when-to-service h3{color:var(--color-text);margin:0 0 12px;font-size:1.375rem;font-weight:700}.fault-when-to-service p{color:var(--color-text-muted);max-width:540px;margin:0 auto 24px;font-size:1rem;line-height:1.6}.fault-when-to-service .fault-service-btn{background:var(--color-primary);color:#fff;border-radius:980px;align-items:center;gap:8px;padding:14px 28px;font-size:.95rem;font-weight:600;text-decoration:none;transition:all .3s;display:inline-flex}.fault-when-to-service .fault-service-btn:hover{filter:brightness(1.1);transform:scale(1.03)}.fault-models{margin:32px 0}.fault-models h3{color:var(--color-text);margin:0 0 16px;font-size:1.125rem;font-weight:700}.fault-models-list{flex-wrap:wrap;gap:8px;display:flex}.fault-model-badge{background:var(--color-surface);border:1px solid var(--border-color);color:var(--color-text);border-radius:12px;align-items:center;padding:8px 16px;font-size:.85rem;font-weight:500;transition:all .3s;display:inline-flex}.fault-model-badge:hover{background:var(--brand-color,var(--fault-accent));color:#fff;border-color:var(--brand-color,var(--fault-accent))}.fault-faq{margin:48px 0}.fault-faq h2{letter-spacing:-.02em;color:var(--color-text);margin:0 0 24px;font-size:1.75rem;font-weight:700}.fault-faq-list{flex-direction:column;display:flex}.fault-faq-item{border-top:1px solid var(--border-color)}.fault-faq-item:last-child{border-bottom:1px solid var(--border-color)}.fault-faq-question{cursor:pointer;text-align:left;width:100%;font-family:var(--font-main);color:var(--color-text);background:0 0;border:none;justify-content:space-between;align-items:center;gap:16px;padding:20px 0;font-size:1.0625rem;font-weight:600;line-height:1.4;transition:color .2s;display:flex}.fault-faq-question:hover{color:var(--color-primary)}.fault-faq-chevron{color:var(--color-text-muted);flex-shrink:0;transition:transform .3s cubic-bezier(.4,0,.2,1)}.fault-faq-item.open .fault-faq-chevron{transform:rotate(180deg)}.fault-faq-answer{max-height:0;transition:max-height .35s cubic-bezier(.4,0,.2,1);overflow:hidden}.fault-faq-item.open .fault-faq-answer{max-height:500px}.fault-faq-answer p{color:var(--color-text-muted);padding-bottom:20px;font-size:.95rem;line-height:1.65}.fault-related-services{margin:48px 0}.fault-related-services h2{letter-spacing:-.02em;color:var(--color-text);margin:0 0 24px;font-size:1.5rem;font-weight:700}.fault-related-grid{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}.fault-related-card{background:var(--color-surface);border:1px solid var(--border-color);color:inherit;border-radius:16px;align-items:center;gap:16px;padding:20px 24px;text-decoration:none;transition:transform .3s,box-shadow .3s;display:flex}.fault-related-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #0000000f}[data-theme=dark] .fault-related-card:hover{box-shadow:0 8px 24px #0000004d}.fault-related-icon{width:44px;height:44px;color:var(--color-primary);background:#0071e31a;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;display:flex}[data-theme=dark] .fault-related-icon{background:#2997ff1f}.fault-related-icon svg{width:22px;height:22px}.fault-related-info strong{color:var(--color-text);margin-bottom:2px;font-size:.95rem;font-weight:600;display:block}.fault-related-info span{color:var(--color-text-muted);font-size:.825rem}.fault-cta{max-width:720px;margin:0 auto;padding:0 24px 80px}.fault-cta-card{background:var(--color-surface);text-align:center;border:1px solid var(--border-color);border-radius:20px;padding:40px}.fault-cta-card h3{color:var(--color-text);margin-bottom:12px;font-size:1.5rem;font-weight:700}.fault-cta-card p{color:var(--color-text-muted);margin-bottom:24px;font-size:1rem;line-height:1.5}.fault-cta-buttons{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.fault-cta-phone{background:var(--color-primary);color:#fff;border-radius:980px;align-items:center;gap:8px;padding:14px 28px;font-size:.95rem;font-weight:600;text-decoration:none;transition:all .3s;display:inline-flex}.fault-cta-phone:hover{filter:brightness(1.1);transform:scale(1.03)}.fault-cta-back{color:var(--color-primary);border:1px solid var(--color-primary);background:0 0;border-radius:980px;align-items:center;gap:8px;padding:14px 28px;font-size:.95rem;font-weight:600;text-decoration:none;transition:all .3s;display:inline-flex}.fault-cta-back:hover{background:var(--color-primary);color:#fff}.fault-crosslinks{max-width:720px;margin:0 auto;padding:0 24px 64px}.fault-crosslinks h3{color:var(--color-text);margin-bottom:16px;font-size:1.125rem;font-weight:700}.fault-crosslinks-list{flex-wrap:wrap;gap:10px;display:flex}.fault-crosslink{background:var(--color-surface);border:1px solid var(--border-color);color:var(--color-text);border-radius:980px;align-items:center;gap:6px;padding:8px 16px;font-size:.85rem;font-weight:500;text-decoration:none;transition:all .3s;display:inline-flex}.fault-crosslink:hover{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.fault-crosslink-dot{background:var(--crosslink-brand-color,var(--color-text-muted));border-radius:50%;flex-shrink:0;width:8px;height:8px}.fault-search-wrapper{width:100%;max-width:500px;margin:0 auto;position:relative}.fault-search-input-wrapper{position:relative}.fault-search-icon{color:var(--color-text-muted);pointer-events:none;width:20px;height:20px;position:absolute;top:50%;left:16px;transform:translateY(-50%)}.fault-search-input{background:var(--color-surface);border:1px solid var(--border-color);width:100%;font-family:var(--font-main);color:var(--color-text);border-radius:12px;outline:none;padding:14px 20px 14px 48px;font-size:1rem;transition:border-color .3s,box-shadow .3s}.fault-search-input::placeholder{color:var(--color-text-muted);opacity:.7}.fault-search-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 4px var(--color-primary-glow)}.fault-hub-hero .fault-search-input{color:#f5f5f7;background:#ffffff14;border-color:#ffffff1f}.fault-hub-hero .fault-search-input::placeholder,.fault-hub-hero .fault-search-icon{color:#fff6}.fault-hub-hero .fault-search-input:focus{border-color:var(--fault-accent);background:#ffffff1a;box-shadow:0 0 0 4px #0071e333}.fault-search-results{background:var(--color-surface);border:1px solid var(--border-color);z-index:100;border-radius:16px;max-height:360px;padding:8px;position:absolute;top:calc(100% + 8px);left:0;right:0;overflow-y:auto;box-shadow:0 16px 48px #0000001f}[data-theme=dark] .fault-search-results{box-shadow:0 16px 48px #00000080}.fault-hub-hero .fault-search-results{background:#1c1c1e;border-color:#ffffff1a;box-shadow:0 16px 48px #00000080}.fault-search-result-item{color:inherit;border-radius:10px;align-items:center;gap:12px;padding:12px 16px;text-decoration:none;transition:background-color .15s;display:flex}.fault-search-result-item:hover{background:#0000000a}[data-theme=dark] .fault-search-result-item:hover,.fault-hub-hero .fault-search-result-item:hover{background:#ffffff0f}.fault-search-result-brand{text-transform:uppercase;letter-spacing:.04em;color:var(--color-primary);white-space:nowrap;background:#0071e31a;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;padding:3px 10px;font-size:.7rem;font-weight:600;display:inline-flex}.fault-search-result-title{color:var(--color-text);font-size:.925rem;font-weight:500;line-height:1.3}.fault-hub-hero .fault-search-result-title{color:#f5f5f7}.fault-search-no-results{text-align:center;color:var(--color-text-muted);padding:24px 16px;font-size:.9rem}.fault-hub-brands-section,.fault-hub-top-issues-section{max-width:1200px;margin:0 auto;padding:0 24px}.fault-hub-section-title{letter-spacing:-.025em;color:var(--color-text);text-align:center;margin-bottom:0;padding-top:64px;font-size:clamp(1.5rem,3vw,2rem);font-weight:700}.fault-hub-brands-section .fault-hub-brands{padding-top:40px}.fault-hub-top-issues-section .brand-fault-articles{padding-top:40px;padding-bottom:0}.fault-hub-top-issues-section{padding-bottom:64px}.fault-hub-about{text-align:center;max-width:720px;margin:0 auto;padding:48px 24px 80px}.fault-hub-about p{color:var(--color-text-muted);font-size:1rem;line-height:1.7}@keyframes faultFadeUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.fault-hub-brand-card,.fault-card{opacity:0;transform:translateY(24px)}.fault-hub-brands.animate-in .fault-hub-brand-card,.brand-fault-articles.animate-in .fault-card{animation:.6s cubic-bezier(.16,1,.3,1) forwards faultFadeUp}.fault-hub-brands.animate-in .fault-hub-brand-card:first-child,.brand-fault-articles.animate-in .fault-card:first-child{animation-delay:50ms}.fault-hub-brands.animate-in .fault-hub-brand-card:nth-child(2),.brand-fault-articles.animate-in .fault-card:nth-child(2){animation-delay:.1s}.fault-hub-brands.animate-in .fault-hub-brand-card:nth-child(3),.brand-fault-articles.animate-in 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