:root{--bg:#f3f4f6;--surface:#fff;--ink:#15171c;--ink2:#3a3f4a;--mut:#6b7280;--line:#e2e5ea;--red:#d91f16;--band:#15171c;--band2:#20242c;--band3:#343945;--band-mut:#aeb4c0;--f:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color-scheme:light}
@font-face{font-family:'Inter';font-style:normal;font-display:swap;font-weight:100 900;src:url(../fonts/inter-latin-wght.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Inter';font-style:normal;font-display:swap;font-weight:100 900;src:url(../fonts/inter-latin-ext-wght.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--red)}
:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:4px}
.top{position:sticky;top:0;z-index:5;background:var(--band);color:#fff}
.top .in{max-width:1080px;margin:0 auto;padding:0 clamp(16px,4vw,32px);height:60px;display:flex;align-items:center;gap:16px}
.top a.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#fff}
.top img{height:20px;width:auto}
.top span{font-size:13px;color:var(--band-mut);padding-left:12px;border-left:1px solid var(--band3)}
.top nav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.top nav a{color:var(--band-mut);text-decoration:none;font-size:13.5px;padding:6px 10px;border-radius:999px}
.top nav a[aria-current="page"]{background:#fff;color:var(--ink)}
@media (max-width:720px){.top nav{display:none}}
main{max-width:1080px;margin:0 auto;padding:clamp(32px,6vw,64px) clamp(16px,4vw,32px) 80px;display:grid;grid-template-columns:minmax(0,240px) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:start}
.toc{position:sticky;top:84px;font-size:13.5px;display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--line);padding-left:14px}
.toc b{font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:var(--mut);margin-bottom:6px}
.toc a{color:var(--ink2);text-decoration:none;padding:3px 0}.toc a:hover{color:var(--red)}
@media (max-width:860px){main{grid-template-columns:1fr}.toc{position:static}}
article{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:clamp(22px,4vw,48px);min-width:0}
.eyebrow{font-size:12.5px;font-weight:600;letter-spacing:.075em;text-transform:uppercase;color:var(--mut)}
h1{font-size:clamp(28px,4vw,40px);line-height:1.12;letter-spacing:-.025em;margin:8px 0 10px;text-wrap:balance}
h2{font-size:20px;letter-spacing:-.015em;margin:36px 0 10px;scroll-margin-top:80px}
h3{font-size:16.5px;margin:22px 0 6px}
p,li{color:var(--ink2);max-width:72ch}
ul,ol{padding-left:22px}
li{margin:4px 0}
.meta{font-size:14px;color:var(--mut)}
.box{background:#f6f7f9;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:18px 0}
.box p{margin:6px 0}
.tablewrap{overflow-x:auto;margin:14px 0}
table{border-collapse:collapse;width:100%;font-size:14.5px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--mut)}
mark.ph{background:#fff3c4;color:#5a4300;padding:0 4px;border-radius:4px}
footer{background:var(--band2);color:var(--band-mut);font-size:13.5px}
footer .in{max-width:1080px;margin:0 auto;padding:28px clamp(16px,4vw,32px);display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between}
footer a{color:var(--band-mut)}
@media print{.top,.toc,footer{display:none}main{display:block}article{border:0}}