:root{--ph-bg: #ffffff;--ph-card: #f1f1f1;--ph-fg1: #222222;--ph-fg2: #616161;--ph-link: #0066cc;--ph-border: #d0d5dd;--ph-border-soft: #f0f0f0;--ph-icon1-bg: #d9e9dd;--ph-icon1-fg: rgb(48, 182, 81);--ph-icon2-bg: #f1dfdd;--ph-icon2-fg: rgb(245, 101, 81);--ph-icon3-bg: #e7dbee;--ph-icon3-fg: rgb(166, 62, 218);--ph-icon4-bg: #e0ecf9;--ph-icon4-fg: rgb(0, 102, 204);--ph-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--ph-btn-shadow: inset 0 2px rgba(255, 255, 255, .2), inset 2px 0 rgba(255, 255, 255, .2), inset -2px 0 rgba(255, 255, 255, .2), inset 0 -1px 0 1px #000, inset 0 1px 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