.ar-wrapper{max-width:940px;margin:0 auto;padding:0 16px 48px}.ar-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.ar-page-header{max-width:940px;margin:0 auto;padding:24px 16px 8px;text-align:center}.ar-layout{display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:start}.ar-section{background:var(--swp-surface, #fff);border:1px solid var(--swp-border, #e5e7eb);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px;margin-bottom:12px}.ar-section:last-child{margin-bottom:0}.ar-section-title{font-size:13px;font-weight:800;color:var(--swp-ink);margin:0}.ar-ratio-inputs{display:flex;align-items:center;gap:12px}.ar-ratio-num{width:80px;min-height:44px;padding:8px 12px;border:2px solid var(--swp-border, #e5e7eb);border-radius:8px;font-size:20px;font-weight:700;text-align:center;color:var(--swp-ink);background:var(--swp-bg, #f9fafb);transition:border-color .15s,background .15s}.ar-ratio-num:focus{outline:none;border-color:var(--color-primary, #0d9488)}.ar-ratio-colon{font-size:28px;font-weight:700;color:var(--swp-ink)}.ar-ratio-decimal{font-size:13px;color:var(--swp-ink-muted);margin:0}.ar-presets{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;border:none;padding:0;margin:0}.ar-preset-btn{min-height:52px;padding:8px 12px;border-radius:10px;border:2px solid var(--swp-border, #e5e7eb);background:var(--swp-surface, #fff);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;transition:background .15s,border-color .15s}.ar-preset-btn:hover{background:var(--swp-bg, #f9fafb);border-color:var(--color-primary, #0d9488)}.ar-preset-btn--active{border-color:var(--color-primary, #0d9488);background:color-mix(in srgb,var(--color-primary, #0d9488) 10%,transparent)}.ar-preset-label{font-weight:700;font-size:13px;color:var(--swp-ink)}.ar-preset-icon{font-size:14px}.ar-usage-panel{flex-direction:row;align-items:flex-start;gap:10px}.ar-usage-icon{font-size:20px;flex-shrink:0}.ar-usage-text{font-size:13px;line-height:1.6;color:var(--swp-ink);margin:0}.ar-container-slider-row{display:flex;align-items:center;gap:12px}.ar-container-slider{flex:1;height:36px;cursor:pointer;accent-color:var(--color-primary, #0d9488)}.ar-container-value{font-size:13px;font-weight:700;color:var(--swp-ink);white-space:nowrap;min-width:60px;text-align:right}.ar-preview-wrapper{overflow:hidden;border-radius:12px;border:2px dashed var(--swp-border, #9ca3af);padding:16px;background:var(--swp-bg, #f9fafb);min-height:120px}.ar-preview-box{background:linear-gradient(135deg,var(--color-primary, #0d9488) 0%,#0d9488 50%,#14b8a6 100%);border-radius:8px;display:flex;align-items:center;justify-content:center;transition:width .15s ease,aspect-ratio .15s ease}.ar-preview-label{color:#fff;font-size:16px;font-weight:700;text-shadow:0 1px 3px rgba(0,0,0,.4);text-align:center;padding:4px}.ar-preview-dims{font-size:12px;color:var(--swp-ink-muted);margin:0;text-align:center}.ar-css-header{display:flex;align-items:center;justify-content:space-between;gap:8px}.ar-copy-btn{padding:8px 16px;min-height:44px;border:1px solid var(--swp-border, #e5e7eb);border-radius:8px;background:var(--swp-surface, #fff);font-size:13px;font-weight:700;cursor:pointer;color:var(--swp-ink);white-space:nowrap;transition:background .15s,border-color .15s}.ar-copy-btn:hover{background:var(--swp-bg, #f9fafb)}.ar-copy-btn--copied{background:#d1fae5;border-color:#059669;color:#065f46}.ar-css-code{font-family:Courier New,Courier,monospace;font-size:13px;background:#1a202c;color:#e2e8f0;padding:16px;border-radius:10px;overflow-x:auto;white-space:pre;margin:0;line-height:1.6}.ar-how-to{max-width:940px;margin:48px auto 0;padding:0 16px}.ar-section-heading{font-size:20px;font-weight:800;color:var(--swp-ink);margin:0 0 16px}.ar-steps{padding-left:20px;display:flex;flex-direction:column;gap:8px;font-size:15px;line-height:1.7;color:var(--swp-ink)}.ar-related-section{max-width:940px;margin:32px auto 0;padding:0 16px}.ar-related-tools{display:flex;flex-direction:column;gap:8px}.ar-related-link{color:var(--color-primary, #0d9488);text-decoration:none;font-size:15px}.ar-related-link:hover{text-decoration:underline}@media(max-width:639px){.ar-layout{display:flex;flex-direction:column;gap:16px}.ar-control-col{order:1}.ar-preview-col{order:2}.ar-presets{grid-template-columns:repeat(4,1fr)}.ar-preview-wrapper{padding:8px}.ar-preset-btn{min-height:48px}.ar-preset-label{font-size:11px}}