:root{--rose:#ff5c8a;--rose-deep:#e03e70;--petal:#ffb6cc;--lilac:#9b6dff;--bg:#100d14;--bg-raised:#1a1620;--bg-element:#1c1822;--border:#2a2533;--text:#f5f3f7;--text-dim:#a7a2b0;--radius:16px;--radius-sm:10px;--page:1080px;--prose:720px}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Hiragino Sans,Noto Sans CJK JP,PingFang TC,sans-serif;font-size:17px;line-height:1.65}img{max-width:100%;height:auto}a{color:var(--rose);-webkit-text-decoration-color:color-mix(in srgb, var(--rose) 40%, transparent);text-decoration-color:color-mix(in srgb, var(--rose) 40%, transparent);text-underline-offset:3px}a:hover{-webkit-text-decoration-color:var(--rose);text-decoration-color:var(--rose)}:focus-visible{outline:2px solid var(--rose);outline-offset:3px;border-radius:4px}.visually-hidden{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.wrap{max-width:var(--page);margin:0 auto;padding:0 24px}.prose{max-width:var(--prose)}.site-header{z-index:5;background:color-mix(in srgb, var(--bg) 86%, transparent);-webkit-backdrop-filter:saturate(160%)blur(14px);backdrop-filter:saturate(160%)blur(14px);border-bottom:1px solid var(--border);position:sticky;top:0}.site-header .wrap{justify-content:space-between;align-items:center;gap:20px;min-height:64px;display:flex}.brand{letter-spacing:-.01em;color:var(--text);align-items:center;gap:10px;font-size:17px;font-weight:650;text-decoration:none;display:inline-flex}.brand:hover{color:var(--text)}.mark{background:linear-gradient(145deg, var(--rose), var(--rose-deep) 55%, var(--lilac));border-radius:9px;flex:none;width:26px;height:26px;box-shadow:inset 0 0 0 1px #ffffff14}.site-nav{align-items:center;gap:22px;font-size:15px;display:flex}.site-nav a{color:var(--text-dim);text-decoration:none}.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--text)}.hero{padding:96px 0 72px;position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:radial-gradient(46% 52% at 22% 34%,#ff5c8a33,#0000 70%),radial-gradient(40% 48% at 78% 20%,#9b6dff29,#0000 70%);height:620px;position:absolute;inset:-30% 0 auto}.hero>*{position:relative}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--petal);border:1px solid color-mix(in srgb, var(--rose) 32%, transparent);background:color-mix(in srgb, var(--rose) 10%, transparent);border-radius:999px;margin:0 0 22px;padding:5px 12px;font-size:13px;font-weight:600;display:inline-block}h1{letter-spacing:-.03em;margin:0 0 20px;font-size:clamp(2.4rem,6vw,3.9rem);font-weight:700;line-height:1.08}.lede{color:var(--text-dim);max-width:40ch;margin:0 0 32px;font-size:clamp(1.05rem,2.2vw,1.25rem)}.cta-row{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.btn{border:1px solid #0000;border-radius:999px;align-items:center;gap:8px;padding:13px 24px;font-size:16px;font-weight:600;text-decoration:none;transition:transform .15s,background-color .15s;display:inline-flex}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--rose);color:#fff}.btn-primary:hover{background:var(--rose-deep)}.btn-ghost{border-color:var(--border);color:var(--text);background:var(--bg-element)}.btn-ghost:hover{border-color:color-mix(in srgb, var(--rose) 45%, transparent);color:var(--text)}.note{color:var(--text-dim);margin:18px 0 0;font-size:14px}section{padding:72px 0}section+section{border-top:1px solid var(--border)}h2{letter-spacing:-.02em;margin:0 0 14px;font-size:clamp(1.6rem,3.4vw,2.15rem);line-height:1.2}.section-lede{color:var(--text-dim);max-width:56ch;margin:0 0 44px}.grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;display:grid}.card{background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius);padding:26px 24px}.card h3{letter-spacing:-.01em;margin:0 0 8px;font-size:1.06rem}.card p{color:var(--text-dim);margin:0;font-size:15.5px}.icon{background:color-mix(in srgb, var(--rose) 14%, transparent);width:34px;height:34px;color:var(--rose);border-radius:11px;place-items:center;margin-bottom:16px;display:grid}.icon svg{width:19px;height:19px;display:block}.callout{background:var(--bg-raised);border:1px solid var(--border);border-left:3px solid var(--rose);border-radius:var(--radius);align-items:flex-start;gap:18px;padding:24px 26px;display:flex}.callout h3{margin:0 0 6px;font-size:1.06rem}.callout p{color:var(--text-dim);margin:0;font-size:15.5px}.callout p+p{margin-top:10px}.site-footer{border-top:1px solid var(--border);color:var(--text-dim);padding:44px 0 56px;font-size:14.5px}.footer-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;display:flex}.footer-links{flex-wrap:wrap;gap:20px;margin:0;padding:0;list-style:none;display:flex}.footer-links a{color:var(--text-dim);text-decoration:none}.footer-links a:hover{color:var(--text)}.lang-switch{margin-top:22px}.lang-switch ul{flex-wrap:wrap;gap:18px;margin:0;padding:0;font-size:14.5px;list-style:none;display:flex}.lang-switch a{color:var(--text-dim);text-decoration:none}.lang-switch a:hover,.lang-switch [aria-current]{color:var(--text)}.lang-switch-folded summary{cursor:pointer;width:fit-content;color:var(--text-dim);align-items:center;gap:7px;font-size:14.5px;list-style:none;display:inline-flex}.lang-switch-folded summary::-webkit-details-marker{display:none}.lang-switch-folded summary:hover{color:var(--text)}.lang-switch-folded summary:after{content:"";border-bottom:1.5px solid;border-right:1.5px solid;width:6px;height:6px;transition:transform .15s;transform:translateY(-2px)rotate(45deg)}.lang-switch-folded details[open] summary:after{transform:translateY(1px)rotate(-135deg)}.lang-switch-folded details ul{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px 18px;margin-top:16px;display:grid}.copyright{margin:26px 0 0}.doc{padding:60px 0 84px}.doc h1{margin-bottom:10px;font-size:clamp(2rem,4.6vw,2.7rem)}.doc-meta{color:var(--text-dim);margin:0 0 8px;font-size:14.5px}.doc h2{margin:46px 0 12px;scroll-margin-top:84px;font-size:1.32rem}.doc h3{margin:28px 0 8px;font-size:1.06rem}.doc p,.doc li{color:#ddd9e3}.doc ul,.doc ol{padding-left:22px}.doc li{margin-bottom:8px}.doc li::marker{color:var(--rose)}.doc strong{color:var(--text)}.toc{background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius);margin:34px 0 8px;padding:22px 26px}.toc h2{letter-spacing:.09em;text-transform:uppercase;color:var(--text-dim);margin:0 0 12px;font-size:.82rem}.toc ol{margin:0;padding-left:20px;font-size:15.5px}.toc li{margin-bottom:5px}.toc a{text-decoration:none}.toc a:hover{text-decoration:underline}.notice{background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius);margin:30px 0;padding:26px 28px}.notice h2{margin:0 0 12px;font-size:1.15rem}.notice p{margin:0 0 14px}.notice p[lang=en]{color:var(--text-dim);font-size:15.5px}.notice p:last-child{margin-bottom:0}.table-scroll{border:1px solid var(--border);border-radius:var(--radius);margin:20px 0;overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:540px;font-size:15px}th,td{text-align:left;border-bottom:1px solid var(--border);vertical-align:top;padding:13px 18px}th{background:var(--bg-element);color:var(--text);white-space:nowrap;font-weight:600}td{color:#ddd9e3}tr:last-child td{border-bottom:0}.contact-box{background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius);margin-top:20px;padding:22px 26px}.contact-box p{margin:0}.contact-box p+p{margin-top:8px}.center-page{text-align:center;place-content:center;min-height:62vh;padding:80px 24px;display:grid}.center-page p{color:var(--text-dim);margin:0 0 28px}@media (max-width:640px){body{font-size:16px}.hero{padding:64px 0 52px}section{padding:56px 0}.site-nav{gap:16px;font-size:14px}.callout{flex-direction:column;gap:12px}.btn{justify-content:center;width:100%}}@media (prefers-color-scheme:light){:root{--bg:#fff;--bg-raised:#fff;--bg-element:#f4f2f6;--border:#e8e4ee;--text:#16131a;--text-dim:#6b6675;--petal:#b3255a}.doc p,.doc li,td{color:#3b3644}.card,.callout,.toc,.contact-box{box-shadow:0 1px 2px #16131a0d}.hero:before{background:radial-gradient(46% 52% at 22% 34%,#ff5c8a21,#0000 70%),radial-gradient(40% 48% at 78% 20%,#9b6dff1a,#0000 70%)}}