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#main-content{margin-top:0;padding-top:0}.gearbox-hero-section{background-color:#f1f1f3;align-items:center;width:100%;min-height:500px;margin-top:0;padding-top:0;display:flex;position:relative;overflow:hidden}.gearbox-hero-visual{z-index:1;pointer-events:none;clip-path:url(#gearbox-hero-cut);width:58%;height:100%;position:absolute;top:0;bottom:0;right:0}.gearbox-hero-img{object-fit:cover;object-position:center left;width:100%;height:100%;display:block}.gearbox-hero-container{z-index:2;align-items:center;width:100%;max-width:1400px;min-height:500px;margin:0 auto;padding:0 clamp(24px,4vw,56px);display:flex;position:relative}.gearbox-hero-content{flex-direction:column;justify-content:center;width:100%;max-width:540px;padding:clamp(45px,6vh,65px) 0;display:flex}.gearbox-hero-title{font-family:var(--font-heading);color:#005d7f;letter-spacing:-.02em;margin-bottom:22px;font-size:clamp(2.3rem,3.2vw,3rem);font-weight:700;line-height:1.15}.gearbox-hero-desc{font-family:var(--font-body);color:#334155;margin-bottom:34px;font-size:.98rem;line-height:1.68}.gearbox-hero-expert{margin-top:5px}.gearbox-hero-expert-title{font-family:var(--font-heading);color:#1e293b;margin-bottom:14px;font-size:1.25rem;font-weight:700}.gearbox-pill-btn{font-family:var(--font-heading);color:#005d7f;cursor:pointer;background:0 0;border:1.5px solid #005d7f;border-radius:9999px;justify-content:center;align-items:center;padding:8px 32px;font-size:.92rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.gearbox-pill-btn:hover{color:#fff;background:#005d7f;transform:translateY(-1px);box-shadow:0 4px 12px #005d7f40}@media (width<=991px){.gearbox-hero-section{flex-direction:column;min-height:auto;padding:36px 0 0}.gearbox-hero-container{min-height:auto;padding:0 24px}.gearbox-hero-content{max-width:100%;padding:0 0 30px}.gearbox-hero-visual{clip-path:none;width:100%;height:260px;position:relative}}.gearbox-container{max-width:1400px;margin:0 auto;padding:0 clamp(24px,4vw,56px)}.gearbox-intro-section{background:#fff;padding:70px 0 50px}.gearbox-text-block{font-family:var(--font-body);color:#334155;margin-bottom:24px;font-size:1.05rem;line-height:1.78}.gearbox-equation-wrap{-webkit-overflow-scrolling:touch;flex-flow:row;justify-content:center;align-items:center;gap:clamp(12px,2.5vw,36px);max-width:100%;margin:50px auto 55px;display:flex;overflow-x:auto}.gearbox-equation-wrap img{object-fit:contain;flex-shrink:0;width:auto;max-width:none;height:clamp(60px,9vw,115px)}.gearbox-mod-list-title{font-family:var(--font-heading);color:#005d7f;margin:40px 0 18px;font-size:1.05rem;font-weight:700;line-height:1.4}.gearbox-mod-list{margin:0 0 30px;padding:0;list-style:none}.gearbox-mod-list li{font-family:var(--font-body);color:#334155;margin-bottom:10px;padding-left:22px;font-size:.95rem;line-height:1.6;position:relative}.gearbox-mod-list li:before{content:"•";color:#005d7f;font-size:1.3rem;line-height:1.2;position:absolute;top:0;left:4px}.gearbox-diagrams-section{background:#fff;padding:40px 0 60px}.gearbox-diagrams-grid{grid-template-columns:1fr 1fr;gap:clamp(32px,4vw,64px);margin-bottom:50px;display:grid}@media (width<=768px){.gearbox-diagrams-grid{grid-template-columns:1fr;gap:30px}}.gearbox-diagram-card{flex-direction:column;display:flex}.gearbox-diagram-header{font-family:var(--font-heading);color:#475569;margin-bottom:14px;font-size:.95rem;font-style:italic}.gearbox-diagram-header strong{font-style:italic;font-weight:700}.gearbox-diagram-img-wrap{background:#fff;justify-content:center;align-items:center;width:100%;display:flex}.gearbox-diagram-img-wrap img{object-fit:contain;width:100%;height:auto}.gearbox-chart-wrap{text-align:center;margin:30px 0}.gearbox-chart-img{border-radius:8px;width:100%;max-width:1400px;height:auto;box-shadow:0 4px 20px #0000000f}.gearbox-filtration-note{font-family:var(--font-body);color:#475569;margin-top:28px;font-size:1rem;line-height:1.7}.gearbox-case-study-section{background:#fff;padding:40px 0 90px}.gearbox-case-layout{grid-template-columns:1fr 1fr;align-items:start;gap:clamp(24px,3.5vw,48px);display:grid}.gearbox-case-col{flex-direction:column;gap:clamp(24px,3.5vw,42px);display:flex}.gearbox-case-card{background:#fff;border:1px solid #e2e8f0;border-radius:8px;flex-direction:column;width:100%;padding:0;display:flex;overflow:hidden;box-shadow:0 4px 16px #0000000d}.gearbox-case-card img{width:100%;height:auto;margin:0;padding:0;display:block}.gearbox-patch-bar{color:#fff;text-align:center;font-family:var(--font-heading);letter-spacing:.5px;background:linear-gradient(135deg,#005d7f 0%,#0082c3 100%);border-top:none;margin:0;padding:10px 16px;font-size:1rem;font-style:italic;font-weight:700}.gearbox-case-desc-box{background:#eef4f8;border:1px solid #e2e8f0;border-radius:8px;align-items:center;width:100%;padding:clamp(26px,3.5vw,38px);display:flex;box-shadow:0 4px 16px #00000008}.gearbox-case-desc-text{font-family:var(--font-body);color:#334155;margin:0;font-size:1rem;line-height:1.75}@media (width<=768px){.gearbox-case-layout{grid-template-columns:1fr;gap:24px}.gearbox-case-col{gap:24px}.gearbox-case-desc-box{padding:24px 20px}}