:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--bg:#f6f2e8;--surface:#fffcf5;--surface-2:#efe9da;--border:#dcd2bb;--text:#1b2420;--muted:#5b6159;--accent:#1d5a48;--accent-contrast:#fffcf5;--accent-soft:#e2ece5;--gold:#a8874a;--gold-faint:color-mix(in srgb, var(--gold) 38%, transparent);--ok:#1f7a4d;--ok-soft:#e4f1e8;--warn:#8a5a00;--warn-soft:#f8eed6;--danger:#b3261e;--danger-soft:#f9e7e3;--code-bg:#f1ecdf;--code-text:#23291f;--radius:4px;--space:clamp(80px, 11vw, 136px);--font:system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;--serif:"Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", "Noto Serif CJK JP", serif;--mono:ui-monospace, "SFMono-Regular", "Cascadia Code", "Noto Sans Mono", Consolas, monospace}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#0f1512;--surface:#151d19;--surface-2:#1c2621;--border:#2f3b34;--text:#ece6d6;--muted:#a8aa9e;--accent:#86c9ae;--accent-contrast:#0f1512;--accent-soft:#19302a;--gold:#cdb06e;--ok:#6fd3a0;--ok-soft:#173327;--warn:#f2c265;--warn-soft:#362b12;--danger:#ff8a80;--danger-soft:#3a1c1a;--code-bg:#0b100d;--code-text:#dfe2d9}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);letter-spacing:.02em;flex-direction:column;min-height:100vh;margin:0;font-size:16px;line-height:1.95;display:flex}main{flex:1}a{color:var(--accent);text-underline-offset:2px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}h1,h2,h3{font-family:var(--serif);letter-spacing:.08em;font-weight:600;line-height:1.45}h1{margin:0 0 .9em;font-size:clamp(1.8rem,4vw,2.5rem)}h2{margin:3.4em 0 1.1em;font-size:1.45rem}h3{margin:2.4em 0 .8em;font-size:1.12rem}p{margin:0 0 1.4em}ul,ol{margin:0 0 1.4em;padding-left:1.5em}li+li{margin-top:.6em}.wrap{width:100%;max-width:1100px;margin:0 auto;padding:0 32px}.narrow{max-width:740px}.orn{background-color:var(--gold);-webkit-mask:var(--orn) no-repeat center / contain;-webkit-mask:var(--orn) no-repeat center / contain;mask:var(--orn) no-repeat center / contain;display:block}.orn-divider{--orn:url(/ornaments/divider.svg);width:min(320px,70%);height:32px;margin:0 auto}.orn-fan{--orn:url(/ornaments/fan.svg);width:240px;height:130px;margin:0 auto}.orn-tree{--orn:url(/ornaments/tree.svg);aspect-ratio:360/500}main h2:not(.card h2,.section-head h2){align-items:center;gap:.6em;display:flex}main h2:not(.card h2,.section-head h2):before{content:"";background-color:var(--gold);flex:none;width:.8em;height:.8em;-webkit-mask:url(/ornaments/leaf.svg) 50%/contain no-repeat;mask:url(/ornaments/leaf.svg) 50%/contain no-repeat}.skip-link{position:absolute;left:-9999px}.skip-link:focus{background:var(--surface);z-index:10;padding:6px 10px;top:12px;left:12px}.site-header{background:color-mix(in srgb, var(--surface) 92%, transparent);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:5;position:sticky;top:0}.site-header:after{content:"";background-color:var(--gold-faint);height:12px;display:block;-webkit-mask:url(/ornaments/band.svg) 50%/40px 12px repeat-x;mask:url(/ornaments/band.svg) 50%/40px 12px repeat-x}.header-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;min-height:76px;display:flex}.brand{color:var(--text);font-family:var(--serif);letter-spacing:.06em;align-items:center;gap:14px;font-weight:600;text-decoration:none;display:inline-flex}.brand small{color:var(--muted);margin-left:.3em;font-weight:500}.brand-mark{border:1px solid var(--gold);outline:1px solid var(--gold-faint);outline-offset:3px;background:var(--accent);width:32px;height:32px;color:var(--accent-contrast);place-items:center;margin:6px;font-size:.9rem;display:inline-grid;transform:rotate(45deg)}.brand-mark>span{line-height:1;transform:rotate(-45deg)}.site-nav{flex-wrap:wrap;gap:8px;display:flex}.site-nav a{color:var(--muted);letter-spacing:.08em;border-bottom:1px solid #0000;padding:6px 12px;font-size:.93rem;text-decoration:none}.site-nav a:hover{color:var(--text);border-bottom-color:var(--gold-faint)}.site-nav a[aria-current=page]{color:var(--text);border-bottom-color:var(--gold)}.site-footer{margin-top:var(--space);background:var(--surface);text-align:center;padding:0 0 72px}.site-footer:before{content:"";background-color:var(--gold-faint);height:12px;margin-bottom:64px;display:block;-webkit-mask:url(/ornaments/band.svg) 50%/40px 12px repeat-x;mask:url(/ornaments/band.svg) 50%/40px 12px repeat-x}.footer-inner .orn-fan{width:120px;height:65px;margin-bottom:36px}.footer-inner nav{flex-wrap:wrap;justify-content:center;gap:10px 32px;margin-bottom:20px;display:flex}.footer-inner a{color:var(--muted);letter-spacing:.06em;font-size:.92rem}.footer-inner p{margin:0 0 .6em}.page{padding:88px 0 0}.lead{color:var(--muted);max-width:40em;font-size:1.12rem;line-height:2.05}.muted{color:var(--muted)}.small{font-size:.88rem}.hidden,[hidden]{display:none!important}.nowrap{white-space:nowrap}.num{font-variant-numeric:tabular-nums}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:40px 36px 36px;position:relative}.card:before,.card:after{content:"";background-color:var(--gold);pointer-events:none;width:26px;height:26px;position:absolute;top:7px;-webkit-mask:url(/ornaments/corner.svg) 50%/contain no-repeat;mask:url(/ornaments/corner.svg) 50%/contain no-repeat}.card:before{left:7px}.card:after{right:7px;transform:scaleX(-1)}.card>:last-child{margin-bottom:0}.card h2,.card h3{margin-top:0}.grid{gap:32px;display:grid}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.stack>*+*{margin-top:32px}.section{padding-top:var(--space)}.section>h2:first-child{margin-top:0}.section-divider{padding-top:var(--space)}.hero{padding:clamp(96px,14vw,168px) 0 clamp(72px,9vw,112px);position:relative;overflow:hidden}.hero .wrap{position:relative}.hero-copy{z-index:1;max-width:680px;position:relative}.hero h1{text-wrap:balance;margin-bottom:1em;font-size:clamp(1.9rem,4.4vw,2.7rem);line-height:1.55}.hero .orn-tree{opacity:.85;width:min(340px,34vw);position:absolute;top:50%;right:12px;transform:translateY(-50%)}.hero-actions{flex-wrap:wrap;align-items:center;gap:16px;margin-top:40px;display:flex}.seats{color:var(--muted);align-items:center;gap:8px;font-size:.95rem;display:inline-flex}.seats .dot{background:var(--muted);border-radius:50%;width:8px;height:8px}.seats[data-state=open] .dot{background:var(--ok)}.seats[data-state=full] .dot{background:var(--warn)}.btn{font:inherit;cursor:pointer;letter-spacing:.08em;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:2px;justify-content:center;align-items:center;gap:8px;padding:13px 26px;font-size:.95rem;font-weight:600;line-height:1.2;text-decoration:none;display:inline-flex}.btn:hover{background:var(--surface-2)}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast);box-shadow:0 0 0 1px var(--bg), 0 0 0 2px var(--gold-faint)}.btn-primary:hover{background:var(--accent);filter:brightness(1.08)}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger);filter:brightness(1.08)}.btn-small{letter-spacing:.04em;padding:6px 12px;font-size:.85rem}.btn[disabled]{opacity:.55;cursor:not-allowed}label{margin-bottom:4px;font-size:.92rem;font-weight:600;display:block}.field{margin-bottom:14px}.field-inline{flex-wrap:wrap;align-items:flex-end;gap:12px;display:flex}.field-inline .field{margin-bottom:0}input[type=text],input[type=email],input[type=number],select{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:8px;min-width:0;max-width:100%;padding:8px 10px;font-size:.95rem}input[type=number]{width:11em}.check{align-items:center;gap:8px;font-weight:600;display:flex}.check input{width:18px;height:18px;accent-color:var(--accent)}.hint{color:var(--muted);margin-top:4px;font-size:.85rem;font-weight:400}.notice{border-radius:var(--radius);border:1px solid #0000;margin:0 0 28px;padding:18px 22px}.notice>:last-child{margin-bottom:0}.notice-info{background:var(--accent-soft);border-color:color-mix(in srgb, var(--accent) 30%, transparent)}.notice-ok{background:var(--ok-soft);border-color:color-mix(in srgb, var(--ok) 35%, transparent)}.notice-warn{background:var(--warn-soft);border-color:color-mix(in srgb, var(--warn) 35%, transparent)}.notice-error{background:var(--danger-soft);border-color:color-mix(in srgb, var(--danger) 35%, transparent)}.draft-banner{background:var(--warn-soft);border:1px dashed var(--warn);border-radius:8px;margin-bottom:24px;padding:12px 14px}.placeholder{background:var(--warn-soft);color:var(--warn);border-radius:4px;padding:0 4px;font-weight:600}.table-wrap{border:1px solid var(--border);border-top:2px solid var(--gold-faint);border-radius:var(--radius);background:var(--surface);margin:0 0 2em;overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.93rem}th,td{text-align:left;border-bottom:1px solid var(--border);vertical-align:top;padding:14px 18px}thead th{background:var(--surface-2);white-space:nowrap;font-weight:600}tbody tr:last-child td{border-bottom:0}td.r,th.r{text-align:right;font-variant-numeric:tabular-nums}code,pre,kbd{font-family:var(--mono);font-size:.88em}:not(pre)>code{background:var(--code-bg);color:var(--code-text);border-radius:4px;padding:.1em .35em}pre{background:var(--code-bg);color:var(--code-text);border:1px solid var(--border);border-radius:var(--radius);letter-spacing:0;tab-size:2;margin:0 0 2em;padding:20px 24px;line-height:1.65;overflow-x:auto}pre code{font-size:.86rem}.code-block{position:relative}.code-block .copy-btn{position:absolute;top:8px;right:8px}.code-label{color:var(--muted);font-size:.8rem;font-family:var(--mono);margin:0 0 4px}.tabs{margin:0 0 1.2em}.tablist{border-bottom:1px solid var(--border);flex-wrap:wrap;gap:2px;margin-bottom:10px;display:flex}.tablist button{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;margin-bottom:-1px;padding:8px 12px;font-size:.9rem}.tablist button[aria-selected=true]{color:var(--text);border-bottom-color:var(--accent);font-weight:600}.tabpanel pre{margin-bottom:0}.docs-layout{grid-template-columns:220px minmax(0,1fr);align-items:start;gap:72px;display:grid}.toc{border-left:1px solid var(--gold-faint);padding-left:18px;font-size:.9rem;position:sticky;top:112px}.toc ol{margin:0;padding:0;list-style:none}.toc li+li{margin-top:2px}.toc a{color:var(--muted);padding:3px 0;text-decoration:none;display:block}.toc a:hover{color:var(--text)}.docs-body h2{border-top:1px solid var(--border);padding-top:1.6em}.docs-body h2:first-of-type{border-top:0;margin-top:.6em}.endpoint{font-family:var(--mono);background:var(--surface-2);border-radius:6px;align-items:center;gap:8px;margin-bottom:10px;padding:4px 10px;font-size:.95rem;display:inline-flex}.method{color:var(--accent);font-weight:700}@media (width<=860px){.docs-layout{grid-template-columns:minmax(0,1fr);gap:0}.toc{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);margin-bottom:20px;padding:12px 16px;position:static}}.prob-list{margin:0;padding:0;list-style:none}.prob-row{grid-template-columns:4.5em 1fr 4.5em;align-items:center;gap:10px;font-size:.93rem;display:grid}.prob-row+.prob-row{margin-top:12px}.prob-bar{background:var(--surface-2);border-radius:5px;height:10px;overflow:hidden}.prob-bar span{background:var(--accent);border-radius:5px;height:100%;display:block}.balance{font-variant-numeric:tabular-nums;font-size:2.2rem;font-weight:700;line-height:1.2}.balance small{color:var(--muted);font-size:1rem;font-weight:500}.secret-box{border:1px solid var(--warn);background:var(--warn-soft);border-radius:var(--radius);margin:12px 0;padding:16px}.secret-value{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.secret-value code{word-break:break-all;background:var(--surface);border-radius:6px;flex:1;min-width:0;padding:6px 8px;font-size:.9rem}.status-pill{background:var(--surface-2);color:var(--muted);border-radius:999px;padding:1px 8px;font-size:.78rem;display:inline-block}.status-pill.ok{background:var(--ok-soft);color:var(--ok)}.inline-confirm{flex-wrap:wrap;align-items:center;gap:6px;display:inline-flex}.danger-zone{border-color:color-mix(in srgb, var(--danger) 45%, var(--border))}.row-actions{flex-wrap:wrap;gap:8px;display:flex}.section-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;display:flex}.section-head h2{margin:0}.credit-pos{color:var(--ok)}.credit-neg{color:var(--danger)}@media (width<=860px){.hero .orn-tree{opacity:.7;width:180px;margin:0 auto 48px;position:static;transform:none}}@media (width<=560px){.wrap{padding:0 20px}.card{padding:36px 22px 26px}.page{padding-top:56px}th,td{padding:10px 12px}.brand small{display:none}}