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(width<=600px){:root{--ruler-height:44px;--ruler-width:44px}.top-nav{padding:0 10px}.nav-inner{gap:4px;padding:3px 0}.nav-controls{gap:4px}.control-btn{padding:6px;font-size:12px}.btn-label,.nav-logo span{display:none}.nav-logo img{width:20px;height:20px}.nav-logo{gap:0}.edge-toggles{display:none}.unit-btn{min-width:34px;min-height:32px;padding:4px 8px;font-size:13px}.nav-logo,.control-btn{justify-content:center;min-width:32px;min-height:32px}.ruler-status{padding:1px 6px;font-size:10px}.control-group{gap:1px;padding:1px}.card-grid,.card-grid.cols-2{grid-template-columns:1fr}.hero-section{padding:40px 16px;padding-left:calc(16px + var(--ruler-width))}.hero-title{margin-bottom:14px}.hero-desc{margin-bottom:24px}.hero-actions{flex-direction:column;align-items:center}.btn-primary,.btn-secondary{justify-content:center;width:100%}.hero-badge{padding:3px 10px;font-size:10px}.quick-cal-bar{flex-wrap:wrap;justify-content:center;padding:6px 12px}.quick-diagonal-input{width:60px}.quick-cal-label{font-size:11px}.content-section{padding:48px 16px}.section-title{font-size:22px;line-height:28px}.scroll-content{margin-left:var(--ruler-width)}.unified-subtext,.cal-card p,.seo-text p{overflow-wrap:break-word;word-break:break-word}.site-footer{margin-left:var(--ruler-width)}.footer-inner{text-align:center;flex-direction:column;gap:6px}.footer-links{flex-direction:column;gap:2px}.footer-dot{display:none}.modal-card{border-radius:0;width:100%;height:100dvh;max-height:90vh}.modal-overlay{align-items:flex-end}.modal-header{padding:16px}.modal-body{padding:0 16px 24px}.card-calibration-area{padding:12px 0}.cal-card{padding:20px}.guide-handle{width:28px;height:28px}.guide-tooltip{padding:2px 6px;font-size:9px}.feature-item{font-size:14px}.seo-text{font-size:14px;line-height:24px}.seo-text h3{font-size:16px;line-height:24px}.faq-question{padding:14px 18px}.faq-question h3{font-size:14px}.faq-answer-inner p{padding:0 18px 14px;font-size:13px;line-height:20px}.hero-bg{height:300px;top:-100px}}@media (width<=480px){.edge-cards-4{grid-template-columns:repeat(2,1fr);max-width:240px}}@media (width<=400px){.hero-section{padding:28px 12px;padding-left:calc(12px + var(--ruler-width))}.hero-title{font-size:1.5rem;line-height:1.9rem}.hero-desc{line-height:1.4rem}.top-nav{padding:0 6px}.nav-inner{gap:2px;padding:2px 0}.nav-controls{gap:2px}.control-btn{padding:5px 4px}.unit-btn{min-width:32px;min-height:32px;padding:4px 6px;font-size:12px}.ruler-status{padding:1px 4px;font-size:9px}.content-section{padding:36px 12px}.section-title{font-size:20px;line-height:26px}.quick-cal-bar{gap:4px;padding:4px 8px}.quick-diagonal-input{width:50px;padding:3px 6px;font-size:11px}.quick-cal-apply{padding:3px 10px;font-size:11px}.card-grid{gap:14px}.cal-card{padding:16px}.seo-text{font-size:13px;line-height:22px}}