:root{--ink:#08090b;--ink-2:#111317;--paper:#f3f1ec;--muted:rgba(243,241,236,.62);--line:rgba(243,241,236,.12);--accent:#19c3c8;--display:"General Sans","Satoshi",system-ui,sans-serif;--sans:"Satoshi",system-ui,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--ink);scroll-behavior:smooth}
body{background:var(--ink);color:var(--paper);font-family:var(--sans);font-size:16.5px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.top{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;padding:18px clamp(16px,4vw,48px);background:rgba(8,9,11,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{font-family:var(--display);font-weight:600;font-size:19px;letter-spacing:-.03em;color:var(--paper)}
.back{font-size:14px;color:var(--muted)}
.hero{padding:clamp(56px,9vw,120px) clamp(16px,6vw,96px) 40px;max-width:1240px;margin:0 auto}
.kicker{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
h1{font-family:var(--display);font-weight:500;font-size:clamp(40px,6vw,84px);line-height:.98;letter-spacing:-.045em;margin:14px 0 14px}
.lead{color:var(--muted);font-size:18px;max-width:640px}
.date{margin-top:14px;font-size:13px;color:var(--muted)}
.wrap{display:grid;grid-template-columns:260px 1fr;gap:56px;max-width:1240px;margin:0 auto;padding:0 clamp(16px,6vw,96px) 100px}
.toc{position:sticky;top:90px;align-self:start;max-height:calc(100vh - 110px);overflow:auto;border-left:1px solid var(--line);padding-left:18px}
.toc p{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.toc ol{list-style:none;display:grid;gap:7px}.toc a{color:var(--muted);font-size:14px;line-height:1.35;display:block}.toc a:hover{color:var(--paper);text-decoration:none}
article{max-width:760px}
article h2{font-family:var(--display);font-weight:500;font-size:clamp(22px,2.3vw,30px);letter-spacing:-.03em;line-height:1.15;margin:46px 0 14px;scroll-margin-top:90px}
article h2:first-child{margin-top:0}
article p{margin:0 0 12px;color:rgba(243,241,236,.86)}
article ul{margin:0 0 14px 0;padding-left:0;list-style:none;display:grid;gap:8px}
article li{position:relative;padding-left:20px;color:rgba(243,241,236,.86)}
article li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--accent)}
article b{color:var(--paper);font-weight:600}
.note{margin:0 0 26px;padding:18px 20px;border-radius:18px;background:rgba(25,195,200,.08);border:1px solid rgba(25,195,200,.3);color:var(--paper)}
.en{font-size:15px;color:var(--muted);border-left:2px solid var(--line);padding-left:14px}
.tbl{overflow-x:auto;margin:6px 0 18px;border:1px solid var(--line);border-radius:16px}
table{border-collapse:collapse;width:100%;font-size:14.5px}
th,td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--line)}
th{font-weight:600;background:var(--ink-2);color:var(--paper)}tr:last-child td{border-bottom:0}
td{color:rgba(243,241,236,.82)}
mark.todo{background:#ffd166;color:#1d1300;padding:1px 6px;border-radius:6px;font-weight:600}
.foot{border-top:1px solid var(--line);padding:30px clamp(16px,6vw,96px);display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--muted)}
.foot a{color:var(--muted)}.foot a.on{color:var(--paper)}
@media(max-width:900px){.wrap{grid-template-columns:1fr;gap:20px}.toc{position:static;max-height:none;border-left:0;padding-left:0}}