.ls[data-astro-cid-io7cporw]{flex:none;position:relative}summary[data-astro-cid-io7cporw]{cursor:pointer;color:var(--muted);border:1px solid var(--line);border-radius:var(--r-ctl);white-space:nowrap;align-items:center;gap:6px;padding:7px 10px;font-size:13px;list-style:none;transition:color .15s,border-color .15s;display:inline-flex}summary[data-astro-cid-io7cporw]::-webkit-details-marker{display:none}summary[data-astro-cid-io7cporw]:hover,.ls[data-astro-cid-io7cporw][open] summary[data-astro-cid-io7cporw]{color:var(--accent);border-color:var(--accent)}.globe[data-astro-cid-io7cporw]{fill:none;stroke:currentColor;stroke-width:1.2px;width:13px;height:13px}.caret[data-astro-cid-io7cporw]{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;width:9px;height:6px;transition:transform .18s}.ls[data-astro-cid-io7cporw][open] .caret[data-astro-cid-io7cporw]{transform:rotate(180deg)}.scrim[data-astro-cid-io7cporw],.grab[data-astro-cid-io7cporw],.mtitle[data-astro-cid-io7cporw]{display:none}.menu[data-astro-cid-io7cporw]{z-index:40;background:var(--surface);border:1px solid var(--line);border-radius:10px;min-width:190px;padding:5px;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 14px 30px -18px #0000008c}.menu[data-astro-cid-io7cporw] ul[data-astro-cid-io7cporw]{margin:0;padding:0;list-style:none}.menu[data-astro-cid-io7cporw] a[data-astro-cid-io7cporw]{color:var(--ink);white-space:nowrap;border-radius:7px;align-items:baseline;gap:8px;padding:9px 12px;font-size:14px;text-decoration:none;display:flex}.menu[data-astro-cid-io7cporw] .code[data-astro-cid-io7cporw]{color:var(--faint);letter-spacing:.04em;font-size:12px}.menu[data-astro-cid-io7cporw] .to[data-astro-cid-io7cporw]{display:none}.menu[data-astro-cid-io7cporw] a[data-astro-cid-io7cporw]:hover{background:var(--accent-soft);color:var(--accent)}.menu[data-astro-cid-io7cporw] a[data-astro-cid-io7cporw][aria-current=true]{color:var(--accent);background:var(--accent-soft)}.menu[data-astro-cid-io7cporw] a[data-astro-cid-io7cporw][aria-current=true]:after{content:"✓";margin-left:auto;padding-left:14px}@media (width<=900px){summary[data-astro-cid-io7cporw]{justify-content:center;min-width:44px;min-height:44px;padding:0 10px}.cur[data-astro-cid-io7cporw]{font-size:13px}.scrim[data-astro-cid-io7cporw]{z-index:70;background:#14120f61;animation:.26s ease-out both yi-fade;display:block;position:fixed;inset:0}.menu[data-astro-cid-io7cporw]{z-index:71;min-width:0;padding:8px 12px max(16px, env(safe-area-inset-bottom));border:0;border-top:1px solid var(--line);border-radius:var(--r-card) var(--r-card) 0 0;animation:.26s ease-out both yi-sheet;position:fixed;inset:auto 0 0;box-shadow:0 -14px 34px -20px #0009}.grab[data-astro-cid-io7cporw]{background:var(--line);border-radius:2px;width:38px;height:4px;margin:2px auto 10px;display:block}.mtitle[data-astro-cid-io7cporw]{letter-spacing:.14em;color:var(--faint);margin:0 4px 6px;font-size:12px;display:block}.menu[data-astro-cid-io7cporw] a[data-astro-cid-io7cporw]{border-radius:var(--r-ctl);flex-wrap:wrap;align-items:center;min-height:52px;padding:8px 46px 8px 12px;font-size:16px;position:relative}.menu[data-astro-cid-io7cporw] a[data-astro-cid-io7cporw][aria-current=true]:after{margin:0;padding:0;position:absolute;top:50%;right:14px;transform:translateY(-50%)}.menu[data-astro-cid-io7cporw] .to[data-astro-cid-io7cporw]{color:var(--faint);font-variant-numeric:tabular-nums;flex:100%;margin-top:-4px;font-size:12px;display:block}}:root{--bg:#f7f3ea;--surface:#fffdf8;--ink:#17140f;--muted:#5c5449;--faint:#8c8272;--line:#e0d8c9;--accent:#a5342b;--accent-hover:#8d2a22;--accent-soft:#f2e3dc;--on-accent:#fffdf8;--tint:#fbf4ef;--prose:#2b2620;--hold:#f2ece0;--l2:#3f6154;--l6:#b08a3e;--l6-ink:#86692f;--l6-bg:#fdfbf4;--r-card:12px;--r-ctl:8px;--r-pill:20px;--r-seal:3px;--radius:12px;--serif:"Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;--sans:-apple-system, "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;--hd-h:66px;--shell:1080px;--tabbar-h:0px}@media (prefers-color-scheme:dark){:root{--bg:#14120f;--surface:#1c1916;--ink:#efe7da;--muted:#9c9285;--faint:#8a8073;--line:#302b24;--accent:#d3705c;--accent-hover:#e08670;--accent-soft:#33211c;--on-accent:#14120f;--tint:#241b18;--prose:#efe7da;--hold:#241f19;--l2:#7fa893;--l6:#c9a45e;--l6-ink:#c9a45e;--l6-bg:#1f1b15}}*{box-sizing:border-box}[hidden]{display:none!important}html{scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{background:var(--bg);color:var(--ink);font:16px/1.8 var(--sans);-webkit-text-size-adjust:100%;text-rendering:optimizelegibility;margin:0}.shell{max-width:720px;margin:0 auto;padding:0 24px}.shell.mid{max-width:940px}.shell.wide{max-width:var(--shell)}.shell.flush{max-width:var(--shell);padding:0}main.shell{padding-top:40px;padding-bottom:88px}main.shell.flush{padding-top:0;padding-bottom:72px}.skip{z-index:100;background:var(--accent);color:var(--on-accent);border-radius:var(--r-ctl);padding:10px 18px;font-size:14px;text-decoration:none;transition:top .18s;position:absolute;top:-60px;left:12px}.skip:focus{top:12px}header.site{z-index:50;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0}.hd{max-width:var(--shell);height:var(--hd-h);align-items:center;gap:28px;margin:0 auto;padding:0 24px;display:flex}.brand{color:var(--ink);flex:none;align-items:center;gap:9px;text-decoration:none;display:inline-flex}.mark{border-radius:var(--r-seal);background:var(--accent);width:26px;height:26px;color:var(--surface);font-family:var(--serif);flex:0 0 26px;place-items:center;font-size:17px;font-weight:600;line-height:1;display:grid}.bname{font-family:var(--serif);letter-spacing:.01em;font-size:19px;font-weight:600}.blatin{letter-spacing:.14em;color:var(--muted);text-transform:uppercase;font-size:11px}.mainnav{flex:auto;gap:26px;min-width:0;display:flex}.mainnav a{color:var(--muted);white-space:nowrap;border-bottom:2px solid #0000;padding:22px 0;font-size:15px;text-decoration:none;transition:color .15s,border-color .15s}.mainnav a:hover{color:var(--ink);border-bottom-color:var(--line)}.mainnav a[aria-current=page]{color:var(--ink);border-bottom-color:var(--accent)}.hdtail{flex:none;align-items:center;gap:12px;margin-left:auto;display:flex}.hdcta{padding:9px 18px;font-size:14px}footer.site{border-top:1px solid var(--line);background:var(--surface)}.ft{max-width:var(--shell);flex-wrap:wrap;justify-content:space-between;gap:40px;margin:0 auto;padding:34px 24px 40px;display:flex}.ftbrand{align-items:flex-start;gap:11px;display:flex}.ftname{font-family:var(--serif);margin:0;font-size:17px;font-weight:600;line-height:1.5}.fttag{color:var(--muted);max-width:30ch;margin:2px 0 0;font-size:13px}.ftcols{text-align:right;flex-direction:column;align-items:flex-end;gap:12px;display:flex}.ftcols nav{flex-wrap:wrap;justify-content:flex-end;gap:20px;display:flex}.ftcols nav a{color:var(--muted);font-size:14px;text-decoration:none}.ftcols nav a:hover{color:var(--accent)}.fine{color:var(--faint);max-width:46ch;margin:0;font-size:12px}.tabbar{display:none}h1,h2,h3,h4{font-family:var(--serif);text-wrap:balance;font-weight:600}h1{letter-spacing:-.005em;margin:0 0 14px;font-size:37px;line-height:1.3}h2{margin:48px 0 14px;font-size:25px;line-height:1.4}h3{margin:34px 0 10px;font-size:21px;line-height:1.5}p{text-wrap:pretty}a{color:var(--accent)}a:hover{color:var(--accent-hover)}.eyebrow{font-family:var(--sans);letter-spacing:.14em;color:var(--faint);text-transform:none;margin:0 0 10px;font-size:12px}.eyebrow.accent{color:var(--accent)}.muted{color:var(--muted)}.faint{color:var(--faint)}.num{font-variant-numeric:tabular-nums}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px}.btn{font:inherit;font-family:var(--sans);border-radius:var(--r-ctl);cursor:pointer;border:1px solid var(--line);background:var(--surface);color:var(--ink);white-space:nowrap;justify-content:center;align-items:center;gap:7px;padding:14px 28px;font-size:16px;line-height:1.2;text-decoration:none;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.btn:hover{border-color:var(--accent);color:var(--accent)}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.btn.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:var(--on-accent)}.btn:disabled,.btn[aria-disabled=true]{opacity:.45;cursor:default}.btn:disabled:hover,.btn[aria-disabled=true]:hover{border-color:var(--line);color:var(--ink);background:var(--surface)}.btn.primary:disabled,.btn.primary[aria-disabled=true],.btn.primary:disabled:hover,.btn.primary[aria-disabled=true]:hover{opacity:1;background:var(--accent-soft);color:var(--accent);border-color:#0000}.btn.sm{padding:9px 16px;font-size:14px}.btn.block{width:100%}.stickycta{bottom:calc(var(--tabbar-h) + 10px);z-index:30;background:linear-gradient(to bottom, transparent, var(--bg) 12px);margin-top:4px;padding-top:12px;position:sticky}.stickycta .btn{border-radius:var(--r-card);width:100%;min-height:54px;font-size:17px}:where(a,button,summary,input,[tabindex]):focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}table{border-collapse:collapse;width:100%;font-size:15px}th,td{text-align:left;border-bottom:1px solid var(--line);padding:9px 12px}th{color:var(--faint);font-size:13px;font-weight:500}.src{color:var(--faint);margin-top:12px;font-size:12px;line-height:1.75}.srclinks{color:var(--faint);flex-wrap:wrap;align-items:baseline;gap:4px 16px;margin:8px 0 0;font-size:12px;line-height:1.9;display:flex}.srclinks a{color:var(--muted)}.srclinks a:hover{color:var(--accent)}.locale-note{color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);margin:24px 0 0;padding:12px 16px;font-size:13px}.ldot{background:var(--faint);vertical-align:1px;border-radius:50%;flex:0 0 7px;width:7px;height:7px;margin-right:7px;display:inline-block}.ldot[data-l=L1]{background:var(--accent)}.ldot[data-l=L2]{background:var(--l2)}.ldot[data-l=L3]{background:var(--faint)}.ldot[data-l=L4]{background:var(--ink)}.ldot[data-l=L5]{background:var(--muted)}.ldot[data-l=L6]{background:var(--l6)}@keyframes yi-coin{0%{transform:rotateX(0)translateY(0)}45%{transform:rotateX(900deg)translateY(-14px)}to{transform:rotateX(1800deg)translateY(0)}}@keyframes yi-line{0%{opacity:0;transform:scaleX(.34)}to{opacity:1;transform:scaleX(1)}}@keyframes yi-rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes yi-pulse{0%,to{opacity:.35}50%{opacity:1}}@keyframes yi-sheet{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes yi-fade{0%{opacity:0}to{opacity:1}}.yi-rise{animation:.52s both yi-rise}.coins{perspective:500px;display:flex}.coin{width:var(--coin,42px);height:var(--coin,42px);flex:0 0 var(--coin,42px);border:1.5px solid var(--line);color:var(--faint);font-variant-numeric:tabular-nums;font-weight:600;font-size:calc(var(--coin,42px) * .35);border-radius:50%;place-items:center;display:grid}.coin.y{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.coin.n{border-color:var(--ink);color:var(--ink)}.coin.tossing{animation:.62s cubic-bezier(.3,.7,.2,1) both yi-coin;animation-delay:var(--d,0s)}.mv{color:var(--accent);font-style:normal;font-weight:600}.hexwrap{line-height:0;display:inline-block}.hex{display:block;overflow:visible}.hex .line rect{fill:var(--ink);transition:fill .4s}.hex .line.moving rect{fill:var(--accent)}.hex .line.pending .ph{fill:var(--line)}.hex .mark{fill:var(--accent);animation:2.4s ease-in-out infinite yi-pulse}.hex .line{transform-box:fill-box;transform-origin:50%}.hex .line.is-new{animation:.55s cubic-bezier(.2,.9,.25,1) both yi-line}.hex.stagger .line{animation:.5s cubic-bezier(.2,.9,.25,1) both yi-line;animation-delay:calc(var(--i,0) * 45ms)}@media (prefers-reduced-motion:reduce){.hex .mark{opacity:1;animation:none}*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}@media (width<=900px){.mainnav,.hdcta{display:none}:root{--hd-h:58px;--tabbar-h:calc(56px + max(12px, env(safe-area-inset-bottom)))}.hd{gap:14px;padding:0 18px}.brand{min-height:44px}.blatin{display:none}.hdtail{gap:6px}.shell{padding:0 18px}main.shell{padding-top:28px;padding-bottom:96px}main.shell.flush{padding-bottom:96px}.tabbar{z-index:40;background:var(--surface);border-top:1px solid var(--line);padding-bottom:max(12px, env(safe-area-inset-bottom));display:flex;position:fixed;bottom:0;left:0;right:0}.tabbar a{min-height:56px;color:var(--faint);flex-direction:column;flex:1 1 0;justify-content:center;align-items:center;gap:7px;padding:9px 4px 4px;font-size:12px;text-decoration:none;display:flex}.tabbar .ti{flex-direction:column;align-items:center;gap:3px;width:22px;display:flex}.tabbar .ti i{background:currentColor;border-radius:1px;width:100%;height:2px;display:block}.tabbar .ti i:nth-child(2){width:62%}.tabbar a[aria-current=page]{color:var(--accent)}.tabbar .tl{line-height:1.2}footer.site{margin-bottom:0}.ft{gap:24px;padding:26px 18px 32px}.ftcols{text-align:left;align-items:flex-start}.ftcols nav{justify-content:flex-start;gap:16px}.ftcols nav a{justify-content:center;align-items:center;min-width:44px;min-height:44px;margin-inline:-8px;padding-inline:8px;display:inline-flex}}@media (width<=640px){h1{font-size:27px;line-height:1.32}h2{margin:36px 0 12px;font-size:20px}h3{margin:28px 0 8px;font-size:18px}.card{padding:17px}table{font-size:14px}th,td{padding:8px 9px}.btn{min-height:50px;padding:13px 22px;font-size:17px}.btn.sm{min-height:44px;padding:10px 16px;font-size:15px}}