*{box-sizing:border-box;margin:0;padding:0}
:root{--ink:#0f1117;--ink2:#2d333b;--ink3:#586069;--ink4:#8b949e;--bg:#fff;--bg1:#f6f8fa;--bd:#d0d7de;--blue:#0969da;--green:#1a7f37}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);line-height:1.7;background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
.wide{max-width:1080px}
header.nav{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid #eaeef2}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:60px;max-width:1080px;margin:0 auto;padding:0 20px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;color:var(--ink)}.logo:hover{text-decoration:none}
.logo .ic{width:32px;height:32px;border-radius:8px;background:var(--ink);display:flex;align-items:center;justify-content:center;font-size:15px;color:#fff}
.nav-cta{background:var(--ink);color:#fff;padding:9px 16px;border-radius:10px;font-weight:600;font-size:14px}.nav-cta:hover{text-decoration:none}
.bc{font-size:13px;color:var(--ink4);margin:26px 0 10px}
h1{font-size:clamp(28px,4.4vw,40px);font-weight:800;letter-spacing:-.02em;line-height:1.15;margin:6px 0 12px}
.meta{color:var(--ink4);font-size:13.5px;margin-bottom:24px}
article h2{font-size:22px;font-weight:800;margin:30px 0 10px;letter-spacing:-.01em}
article h3{font-size:18px;font-weight:700;margin:22px 0 8px}
article p{margin:0 0 16px;color:var(--ink2)}
article ul,article ol{margin:0 0 16px 22px;color:var(--ink2)}
article li{margin-bottom:7px}
.lead{font-size:18px;color:var(--ink3);margin-bottom:22px}
.tip{background:var(--bg1);border:1px solid #eaeef2;border-left:3px solid var(--green);border-radius:10px;padding:14px 16px;margin:18px 0;font-size:15px}
.cta{display:inline-block;background:var(--ink);color:#fff;padding:12px 20px;border-radius:12px;font-weight:700;margin:8px 0}.cta:hover{text-decoration:none}
.nl{background:var(--bg1);border:1px solid #eaeef2;border-radius:16px;padding:22px;margin:34px 0}
.nl h3{font-size:18px;font-weight:800;margin-bottom:6px}.nl p{font-size:14px;color:var(--ink3);margin-bottom:12px}
.nl form{display:flex;gap:8px;flex-wrap:wrap}
.nl input{flex:1;min-width:200px;border:1px solid var(--bd);border-radius:10px;padding:11px 14px;font-size:16px;font-family:inherit}
.nl button{background:var(--ink);color:#fff;border:none;border-radius:10px;padding:11px 18px;font-weight:700;font-size:14px;cursor:pointer}
.nl .msg{font-size:13px;margin-top:8px}
.posts{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin:24px 0 10px}
.post{border:1px solid var(--bd);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:8px;background:var(--bg)}.post:hover{border-color:var(--ink4)}
.post h2{font-size:18px;font-weight:700;margin:0}
.post p{font-size:14px;color:var(--ink3);margin:0}
.post .more{font-weight:600;font-size:14px;margin-top:auto}
.rel{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0}
.chip{border:1px solid var(--bd);border-radius:100px;padding:7px 14px;font-size:13.5px;font-weight:600;color:var(--ink)}.chip:hover{border-color:var(--blue);color:var(--blue);text-decoration:none}
footer{border-top:1px solid #eaeef2;margin-top:40px;padding:26px 0;color:var(--ink4);font-size:13.5px}
footer a{color:var(--ink3)}
.fl{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:12px}
@media(max-width:600px){article h1{font-size:27px}}