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@media (max-width:900px){.step-grid,.card-grid,.gallery-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.feature-split,.app-grid{grid-template-columns:1fr}.app-media{height:340px}.index-list{grid-template-columns:1fr}}
@media (max-width:680px){:root{--header-h:82px}.shell-tabs{display:none}.site-main{padding-top:calc(var(--header-h) + 22px)}.dock-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-logo{height:30px;max-width:128px}.brand-word{font-size:18px}.drawer-trigger,.app-link{padding:0 11px;font-size:14px;min-height:44px}.home-hero,.page-hero,.content-section{padding:14px 0}.hero-box,.page-hero-box,.copy-block,.article-section{padding:18px}.hero-media{height:220px}.step-grid,.card-grid,.number-grid,.gallery-grid{grid-template-columns:1fr}.gallery-grid .content-image,.gallery-grid .media-fallback{height:190px}.footer-grid{grid-template-columns:1fr 1fr;gap:22px}.site-footer{padding-bottom:calc(88px + env(safe-area-inset-bottom))}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.98);border-top:1px solid var(--line);z-index:60;display:grid;grid-template-columns:repeat(5,1fr)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;min-width:0;color:var(--deep);font-size:13px;font-weight:800}.mobile-bottom-nav a.is-active{background:var(--brand);color:#fff}.search-layer{top:82px}.search-card{width:calc(100% - 16px);background:var(--soft);border-radius:0 0 16px 16px}.tide-drawer{width:min(86vw,410px)}.top-inner,.dock-inner,.tabs-inner,.footer-inner,.section-inner{width:min(calc(100% - 32px),var(--max))}.section-title-row{display:block}.section-title-row p{margin-top:6px}.app-media{height:320px}}
@media (max-width:390px){.brand-word{font-size:16px}.drawer-trigger,.app-link{padding:0 8px;font-size:13px}.dock-inner{gap:4px}.footer-grid{grid-template-columns:1fr}}