@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+JP:wght@400;500;600;700&display=swap";:root{--color-theme: #ffd69d;--color-theme-hover: #fbc27b;--color-theme-light: #fff8ee;--color-theme-dark: #78350f;--color-theme-text: #451a03;--color-bg-base: #fcfbf9;--color-bg-card: #ffffff;--color-border: #eee7dc;--color-text-main: #272320;--color-text-muted: #6e6760}body{font-family:Inter,Noto Sans JP,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--color-bg-base);color:var(--color-text-main);-webkit-font-smoothing:antialiased}.paper-card{background-color:var(--color-bg-card);border:1px solid var(--color-border);box-shadow:0 1px 3px #281e140a;border-radius:0}.paper-card-highlight{border-top:4px solid var(--color-theme)}.btn-theme{background-color:var(--color-theme);color:var(--color-theme-text);font-weight:600;border:1px solid #f2c27f;border-radius:0;transition:all .15s ease-in-out}.btn-theme:hover{background-color:var(--color-theme-hover)}.btn-theme:active{transform:translateY(1px)}.btn-theme-outline{background-color:#fff;color:var(--color-theme-dark);border:1px solid var(--color-theme);border-radius:0;transition:all .15s ease-in-out}.btn-theme-outline:hover{background-color:var(--color-theme-light)}.badge-theme{background-color:var(--color-theme-light);color:var(--color-theme-dark);border:1px solid #fed7aa;border-radius:0}.bracket-heading{position:relative;padding:.25em .85em;display:inline-block}.bracket-heading:before{content:"";position:absolute;top:0;left:0;width:12px;height:16px;border-left:3px solid #ffd69d;border-top:3px solid #ffd69d}.bracket-heading:after{content:"";position:absolute;bottom:0;right:0;width:12px;height:16px;border-right:3px solid #ffd69d;border-bottom:3px solid #ffd69d}.top-menu-btn{position:relative;display:inline-block;cursor:pointer}.top-menu-btn:after{content:"";position:absolute;bottom:-4px;left:0;width:100%;height:2px;background-color:currentColor;transform:scaleX(0);transform-origin:center;transition:transform .25s ease}.top-menu-btn:hover:after{transform:scaleX(1)}.section-paper{background-color:#fff;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}@keyframes arrow-flow{0%,to{opacity:.35}50%{opacity:1}}.animate-flow{animation:arrow-flow 1.8s ease-in-out infinite}.animate-flow-delay{animation:arrow-flow 1.8s ease-in-out .9s infinite}