:root{--color-void:#08090a;--color-carbon:#0f1011;--color-obsidian:#161718;--color-graphite:#23252a;--color-ash:#62666d;--color-fog:#8a8f98;--color-mist:#d0d6e0;--color-paper:#fff;--color-accent:#8643f3;--color-accent-dark:#7239cf;--color-warning:#ffd800;--font-heading:"Noto Sans JP", ui-sans-serif, system-ui, sans-serif;--font-body:"Noto Sans JP", ui-sans-serif, system-ui, sans-serif;--radius-card:12px;--radius-btn:6px;--radius-pill:9999px}*{box-sizing:border-box}body{background:radial-gradient(ellipse 900px 500px at 20% 0%, #6366f11f, transparent), var(--color-void);color:var(--color-paper);font-family:var(--font-body);letter-spacing:-.01em;background-attachment:fixed;margin:0;font-size:16px;line-height:1.5}.site-header{border-bottom:1px solid var(--color-graphite);justify-content:space-between;align-items:center;max-width:1100px;margin:0 auto;padding:20px 24px;display:flex}.site-header-brand{font-family:var(--font-heading);letter-spacing:-.01em;color:var(--color-paper);align-items:center;gap:10px;font-size:16px;font-weight:500;text-decoration:none;display:flex}.site-header-brand:hover{text-decoration:none}.site-header-logo{border-radius:6px;display:block}.site-header-account{align-items:center;gap:12px;display:flex}.site-header-username{color:var(--color-fog);font-size:13px}.site-header-logout{border:1px solid var(--color-graphite);color:var(--color-mist);border-radius:var(--radius-btn);font-size:13px;font-weight:400;font-family:var(--font-body);cursor:pointer;background:0 0;padding:7px 12px}.site-header-logout:hover{border-color:var(--color-fog)}.site-header .site-header-login{border-radius:var(--radius-pill);width:auto;padding:8px 16px;font-size:13px;display:inline-block}main{max-width:1100px;margin:0 auto;padding:64px 24px 120px}h1,h2,h3{font-family:var(--font-heading);letter-spacing:-.02em;color:var(--color-paper);margin:0;font-weight:500;line-height:1.2}h1{margin-bottom:12px;font-size:36px}h2{letter-spacing:-.01em;color:var(--color-fog);margin-top:80px;margin-bottom:8px;font-size:13px;font-weight:400}.section-note{color:var(--color-ash);letter-spacing:normal;margin:0 0 20px;font-size:13px}h3{letter-spacing:-.01em;margin-bottom:4px;font-size:16px;font-weight:500}.hero{padding-bottom:8px}.hero-banner{border-radius:var(--radius-card);width:100%;height:auto;margin-bottom:28px;display:block}.lede{max-width:46em;color:var(--color-fog);letter-spacing:normal;font-size:15px;line-height:1.7}a{color:var(--color-paper);text-decoration:none}a:hover{text-decoration:underline}.rank-grid{grid-template-columns:repeat(4,minmax(0,1fr));align-items:stretch;gap:12px;display:grid}@media (max-width:900px){.rank-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:520px){.rank-grid{grid-template-columns:1fr}}.product-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;display:grid}.rank-card,.product-card{background:var(--color-carbon);border:1px solid var(--color-graphite);border-radius:var(--radius-card);flex-direction:column;gap:4px;padding:20px;display:flex;position:relative}.rank-card>h3{color:var(--color-mist)}.rank-card[data-rank=rank_s]{border-color:var(--color-accent);background:#6366f114}.rank-card[data-rank=rank_s]>h3{color:var(--color-accent)}.price{color:var(--color-paper);font-size:22px;font-weight:500;font-family:var(--font-heading);letter-spacing:-.02em;margin:6px 0 14px}.price span{font-size:12px;font-weight:400;font-family:var(--font-body);color:var(--color-fog);letter-spacing:normal}.perk-list{flex-direction:column;flex-grow:1;gap:7px;margin:0 0 18px;padding:0;list-style:none;display:flex}.perk-list li{color:var(--color-mist);letter-spacing:normal;padding-left:18px;font-size:13px;position:relative}.perk-list li:before{content:"✓";color:var(--color-accent);font-weight:500;position:absolute;left:0}.product-card p{color:var(--color-fog);letter-spacing:normal;flex-grow:1;font-size:13px}.btn{border-radius:var(--radius-btn);width:100%;font-family:var(--font-body);letter-spacing:normal;text-align:center;cursor:pointer;border:none;padding:10px 16px;font-size:13px;font-weight:500;transition:background-color .15s,border-color .15s;display:block}.btn-primary{background:var(--color-accent);color:var(--color-paper)}.btn-primary:hover{background:var(--color-accent-dark)}.btn-secondary{color:var(--color-mist);border:1px solid var(--color-graphite);background:0 0}.btn-secondary:hover{border-color:var(--color-fog)}.btn:disabled{opacity:.5;cursor:default}.site-footer{max-width:1100px;color:var(--color-fog);border-top:1px solid var(--color-graphite);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 20px;margin:0 auto;padding:24px 24px 48px;font-size:12px;display:flex}.site-footer-links{flex-wrap:wrap;gap:8px 20px;display:flex}.site-footer a{color:var(--color-fog)}.site-footer a:hover{color:var(--color-paper)}.legal-doc{max-width:720px}.legal-doc h2{color:var(--color-paper);margin-top:36px;margin-bottom:10px;font-size:15px}.legal-doc p,.legal-doc li{color:var(--color-fog);letter-spacing:normal;font-size:14px}.legal-doc ul{padding-left:20px}.legal-dl dt{color:var(--color-paper);margin-top:22px;font-size:14px;font-weight:500}.legal-dl dd{color:var(--color-fog);margin:6px 0 0;font-size:14px}.legal-todo{border-radius:var(--radius-btn);background:#ffd80014;border:1px solid #ffd80066;margin-top:28px;padding:12px 16px;color:var(--color-warning)!important}.rules-shell{grid-template-columns:232px minmax(0,1fr);align-items:start;gap:56px;max-width:1100px;margin:0 auto;padding:48px 24px 120px;display:grid}.rules-toc-mobile{display:none}.rules-sidebar{max-height:calc(100vh - 48px);padding-right:8px;font-size:14px;position:sticky;top:24px;overflow-y:auto}.rules-sidebar ul,.rules-toc-mobile ul{margin:12px 0;padding:0;list-style:none}.rules-sidebar a,.rules-toc-mobile a{color:var(--color-fog);padding:5px 0;text-decoration:none;display:block}.rules-sidebar a:hover,.rules-toc-mobile a:hover{color:var(--color-paper)}.rules-sidebar-top{font-weight:500;color:var(--color-paper)!important}.rules-toc-h2{margin-top:18px}.rules-toc-h2 a{color:var(--color-mist);font-weight:500}.rules-toc-h3 a{border-left:1px solid var(--color-graphite);padding-left:12px}.rules-sidebar a[aria-current=true],.rules-toc-mobile a[aria-current=true]{color:var(--color-paper)}.rules-toc-h3 a[aria-current=true]{border-left-color:var(--color-accent)}.rules-toc-h2 a[aria-current=true]{color:var(--color-accent)}.rules-doc{min-width:0;max-width:720px;color:var(--color-mist);margin:0;padding:0;font-size:16px;line-height:1.9}.rules-meta{color:var(--color-ash);margin:0 0 8px;font-size:13px;line-height:1.5}.rules-meta a{color:var(--color-fog)}.rules-doc h1{letter-spacing:-.02em;color:var(--color-paper);margin:0 0 40px;font-size:34px;font-weight:500;line-height:1.3}.rules-doc h2{letter-spacing:-.02em;color:var(--color-paper);border-top:1px solid var(--color-graphite);margin:80px 0 20px;padding-top:28px;scroll-margin-top:24px;font-size:24px;font-weight:500;line-height:1.4}.rules-doc h1+h2{margin-top:32px}.rules-doc h3{color:var(--color-paper);counter-reset:rule;margin:48px 0 14px;scroll-margin-top:24px;font-size:18px;font-weight:500;line-height:1.5}.rules-doc h4{color:var(--color-paper);margin:32px 0 8px;scroll-margin-top:24px;font-size:16px;font-weight:500}.rules-doc p{margin:12px 0}.rules-doc a{color:var(--color-accent)}.rules-anchor{opacity:0;margin-left:8px;text-decoration:none;transition:opacity .15s;color:var(--color-ash)!important}.rules-doc h2:hover .rules-anchor,.rules-doc h3:hover .rules-anchor,.rules-doc h4:hover .rules-anchor,.rules-anchor:focus{opacity:1}.rules-doc ul,.rules-doc ol{margin:14px 0;padding-left:0;list-style:none}.rules-doc li{counter-increment:rule;margin:10px 0;padding-left:2.6em;position:relative}.rules-doc li:before{content:counter(rule);text-align:center;min-width:1.8em;color:var(--color-fog);background:var(--color-obsidian);border:1px solid var(--color-graphite);border-radius:4px;font-size:12px;line-height:1.7;position:absolute;top:.5em;left:0}.rules-doc table{border-collapse:collapse;width:100%;margin:16px 0;font-size:14px}.rules-doc th,.rules-doc td{border:1px solid var(--color-graphite);text-align:left;padding:8px 12px}.rules-doc th{background:var(--color-carbon);font-weight:500}.rules-doc code{background:var(--color-obsidian);border:1px solid var(--color-graphite);border-radius:4px;padding:1px 6px;font-size:.9em}@media (max-width:860px){.rules-shell{grid-template-columns:1fr;gap:0;padding:0 16px 96px}.rules-sidebar{display:none}.rules-toc-mobile{z-index:5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--color-graphite);background:#08090ab8;margin:0 -16px 32px;padding:0 16px;font-size:14px;display:block;position:sticky;top:0}.rules-toc-mobile summary{cursor:pointer;color:var(--color-mist);padding:12px 0;font-weight:500;list-style:none}.rules-toc-mobile summary::-webkit-details-marker{display:none}.rules-toc-mobile summary:after{content:"▾";color:var(--color-ash);margin-left:8px}.rules-toc-mobile[open] summary:after{content:"▴"}.rules-toc-mobile nav{max-height:60vh;padding-bottom:12px;overflow-y:auto}.rules-doc h2,.rules-doc h3,.rules-doc h4{scroll-margin-top:68px}.rules-doc h1{margin-bottom:28px;font-size:28px}.rules-doc h2{margin-top:56px;font-size:22px}.rules-anchor{opacity:1}}.site-header-nav{margin-left:24px;margin-right:auto}.site-header-link{color:var(--color-mist);font-size:13px;text-decoration:none}.site-header-link:hover{color:var(--color-paper)}:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}html{scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:var(--color-graphite) transparent}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}*{scrollbar-width:thin;scrollbar-color:var(--color-graphite) transparent}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-graphite);border-radius:var(--radius-pill);border:2px solid var(--color-void)}::-webkit-scrollbar-thumb:hover{background:var(--color-ash)}::selection{color:var(--color-paper);background:#8643f366}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:4px}.rules-search-input{background:var(--color-carbon);border:1px solid var(--color-graphite);border-radius:var(--radius-btn);width:100%;color:var(--color-paper);font:inherit;margin:8px 0 4px;padding:8px 12px;font-size:14px}.rules-search-input::placeholder{color:var(--color-ash)}.rules-search-input:focus{border-color:var(--color-accent);outline:none}.rules-search-input::-webkit-search-cancel-button{filter:invert(.6)}.rules-search-results ul{margin:8px 0;padding:0;list-style:none}.rules-search-results li{border-bottom:1px solid var(--color-graphite)}.rules-search-results a{color:var(--color-mist);padding:10px 2px;text-decoration:none;display:block}.rules-search-results a:hover .rules-search-text{color:var(--color-paper)}.rules-search-crumb{color:var(--color-ash);margin-bottom:2px;font-size:12px;display:block}.rules-search-text{color:var(--color-fog);font-size:13px;line-height:1.6;display:block}.rules-search-text mark{color:var(--color-paper);background:#8643f359;border-radius:2px;padding:0 1px}.rules-search-count,.rules-search-empty{color:var(--color-ash);margin:10px 0 0;font-size:12px}