:root{--bg:#FBF7EF;--card:#fff;--ink:#14201F;--mut:#5E6B69;--line:#ECE6DA;--acc:#0F9D8C;--acc2:#0F766E;--hot:#FF7A59}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:hidden}
body{margin:0;overflow-x:hidden;background:var(--bg);color:var(--ink);font:16px/1.65 "Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--acc2)}
.wrap{max-width:820px;margin:0 auto;padding:0 16px}
/* top bar */
.top{position:sticky;top:0;z-index:5;background:rgba(251,247,239,.85);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:19px;letter-spacing:-.3px}
.brand img{width:34px;height:34px}
.brand b{color:var(--acc)}
.nav{display:flex;gap:18px;font-size:15px;font-weight:600}
.nav a{color:var(--mut);text-decoration:none}.nav a:hover{color:var(--ink)}
/* cards & text pages */
main{padding:28px 0 56px}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:26px 24px;box-shadow:0 1px 2px rgba(20,32,31,.04),0 8px 24px rgba(20,32,31,.05)}
h1{margin:0 0 6px;font-size:30px;line-height:1.2;letter-spacing:-.5px}
h2{font-size:19px;margin:30px 0 6px;color:var(--ink);letter-spacing:-.2px}
.meta{display:inline-block;color:var(--mut);font-size:13.5px;background:#F3EFE6;border-radius:12px;padding:5px 12px;margin:4px 0 18px;line-height:1.5}
ul{padding-left:20px}li{margin:4px 0}
code{background:#F3EFE6;border-radius:6px;padding:1px 6px;font-size:.92em}
.back{margin:0 0 14px;font-size:15px}.back a{text-decoration:none;font-weight:700}
footer{border-top:1px solid var(--line);color:var(--mut);font-size:13.5px}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:space-between;align-items:center;padding-top:22px;padding-bottom:30px}
footer a{color:var(--mut);text-decoration:none}footer a:hover{color:var(--ink)}
@media(max-width:480px){h1{font-size:26px}.card{padding:22px 18px;border-radius:18px}.nav{gap:14px;font-size:14px}}