:root{
  --orange:#FF6A00; --orange-soft:#FFF1E8; --orange-line:#F0D5C2;
  --ink:#1F2328; --ink-2:#4A5158; --ink-3:#7A828A;
  --line:#E6E8EB; --bg:#FFFFFF; --bg-soft:#F7F8FA;
  --radius:14px;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.06);
  --shadow-hover:0 2px 4px rgba(16,24,40,.06),0 16px 40px rgba(16,24,40,.12);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* ---------- NAV ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:22px;height:60px}
.nav .logo{font-weight:800;font-size:17px;letter-spacing:-.2px;margin-right:auto}
.nav .logo span{color:var(--orange)}
.nav a.link{font-size:14px;color:var(--ink-2);font-weight:500;transition:.16s}
.nav a.link:hover,.nav a.link.on{color:var(--orange)}
.nav .nav-cta{background:var(--orange);color:#fff;font-size:13.5px;font-weight:700;padding:7px 15px;border-radius:999px;transition:.2s}
.nav .nav-cta:hover{background:#E85F00}

/* ---------- BLOG HEADER ---------- */
.bhead{background:radial-gradient(900px 380px at 82% -20%,rgba(255,106,0,.18),transparent 62%),linear-gradient(160deg,#181C21 0%,#22272E 55%,#1B1F25 100%);color:#fff;padding:50px 0 44px;position:relative;overflow:hidden}
.bhead::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,106,0,.6),transparent)}
.bhead-in{display:grid;grid-template-columns:112px 1fr;gap:30px;align-items:center}
.bhead img.avatar{width:112px;height:112px;border-radius:50%;object-fit:cover;object-position:50% 20%;border:3px solid rgba(255,255,255,.9);box-shadow:0 12px 32px rgba(0,0,0,.42)}
.bhead h1{font-size:31px;font-weight:800;letter-spacing:-.5px;line-height:1.25}
.bhead h1 span{color:var(--orange)}
.bhead .tagline{font-size:15px;color:#B9C1C9;margin-top:10px;max-width:680px}
.bhead .chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.chip{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);padding:5px 12px;border-radius:999px;font-size:12.5px;color:#DDE2E8;transition:.18s}
a.chip:hover{border-color:var(--orange);color:var(--orange)}

/* ---------- LAYOUT ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 296px;gap:46px;padding-top:42px;padding-bottom:24px;align-items:start}
.col-side{position:sticky;top:84px;display:flex;flex-direction:column;gap:16px}
.scard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.scard h4{font-size:12px;font-weight:800;letter-spacing:1.3px;text-transform:uppercase;color:var(--ink-3);margin-bottom:12px}
.scard p{font-size:13.6px;color:var(--ink-2)}
.scard .links{list-style:none}
.scard .links a{display:flex;align-items:center;gap:9px;font-size:13.8px;font-weight:600;padding:8px 0;color:var(--ink-2);border-bottom:1px dashed var(--line);transition:.16s}
.scard .links li:last-child a{border-bottom:0}
.scard .links a:hover{color:var(--orange)}
.cloud{display:flex;flex-wrap:wrap;gap:8px}
.cloud a{font-size:12.5px;font-weight:600;color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);padding:4px 11px;border-radius:999px;transition:.16s;cursor:pointer}
.cloud a:hover{border-color:var(--orange-line);color:var(--orange)}
.kv{display:flex;justify-content:space-between;gap:10px;font-size:13.4px;padding:7px 0;border-bottom:1px dashed var(--line)}
.kv:last-child{border-bottom:0}
.kv span{color:var(--ink-3)}
.kv b{font-weight:700}

/* ---------- POST LIST ---------- */
.list-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding-bottom:13px;border-bottom:2px solid var(--ink)}
.list-head h2{font-size:20px;font-weight:800;letter-spacing:-.3px}
.list-head .cnt{font-size:12.5px;color:var(--ink-3)}
.filters{display:flex;flex-wrap:wrap;gap:8px;padding:16px 0 2px}
.filters button{font:inherit;font-size:12.5px;font-weight:600;color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);padding:5px 13px;border-radius:999px;cursor:pointer;transition:.16s}
.filters button:hover{border-color:var(--orange-line);color:var(--orange)}
.filters button.on{background:var(--orange);border-color:var(--orange);color:#fff}
.posts{list-style:none}
.post{display:grid;grid-template-columns:92px minmax(0,1fr);gap:22px;padding:26px 0;border-bottom:1px solid var(--line)}
.post:last-child{border-bottom:0}
.post .date b{display:block;font-size:21px;font-weight:800;letter-spacing:-.4px;line-height:1.1}
.post .date span{font-size:11.5px;color:var(--ink-3);font-weight:700;letter-spacing:.4px;text-transform:uppercase}
.post .tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:9px}
.tag{display:inline-block;font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:6px;background:var(--orange-soft);color:var(--orange)}
.tag.b{background:#E3F2FD;color:#1565C0}
.tag.p{background:#F3E5F5;color:#7B1FA2}
.tag.g{background:#E8F5E9;color:#2E7D32}
.post h3{font-size:19px;font-weight:750;letter-spacing:-.25px;line-height:1.45}
.post h3 a{transition:.16s}
.post:hover h3 a{color:var(--orange)}
.post p{font-size:14.2px;color:var(--ink-2);margin-top:8px}
.post .meta{font-size:12.5px;color:var(--ink-3);margin-top:12px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.post .meta .rd{color:var(--orange);font-weight:700}
.empty{display:none;padding:34px 0;color:var(--ink-3);font-size:14px}

/* ---------- ARTICLE ---------- */
.art-wrap{max-width:768px;margin:0 auto;padding-left:24px;padding-right:24px}
.art-head{padding-top:42px}
.crumb{font-size:13px;color:var(--ink-3);font-weight:600}
.crumb a:hover{color:var(--orange)}
.art-head h1{font-size:33px;font-weight:800;letter-spacing:-.6px;line-height:1.3;margin-top:14px}
.art-head .sub{font-size:16px;color:var(--ink-3);margin-top:12px}
.art-head .meta{font-size:13px;color:var(--ink-3);margin-top:16px;display:flex;gap:12px;flex-wrap:wrap;align-items:center;padding-bottom:22px;border-bottom:1px solid var(--line)}
.art-body{padding-top:26px;padding-bottom:6px;font-size:15.5px;color:#2C3238;line-height:1.95}
.art-body h2{font-size:21px;font-weight:750;letter-spacing:-.3px;margin:34px 0 12px;color:var(--ink)}
.art-body h3{font-size:16.5px;font-weight:700;margin:24px 0 10px;color:var(--ink)}
.art-body p{margin:14px 0}
.art-body ul,.art-body ol{margin:14px 0 14px 22px}
.art-body li{margin:7px 0}
.art-body strong{font-weight:700;color:var(--ink)}
.art-body code{font-family:var(--mono);font-size:13px;background:var(--bg-soft);border:1px solid var(--line);border-radius:5px;padding:1px 6px}
.art-body pre{background:#151A20;color:#D7DEE7;border-radius:12px;padding:18px 20px;overflow:auto;margin:18px 0;font-size:13px;line-height:1.7}
.art-body pre code{background:none;border:0;padding:0;color:inherit}
.art-body blockquote{border-left:3px solid var(--orange);background:var(--orange-soft);border-radius:0 10px 10px 0;padding:14px 18px;margin:18px 0;font-size:14.6px;color:#4A5158}
.art-body blockquote p{margin:0}
.art-body img{border-radius:12px;border:1px solid var(--line);margin:18px 0;width:100%}
.art-body figure{margin:22px 0}
.art-body figcaption{font-size:12.5px;color:var(--ink-3);text-align:center;margin-top:8px}
.art-body hr{border:0;border-top:1px solid var(--line);margin:30px 0}
.tbl{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.tbl th,.tbl td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.tbl th{background:var(--bg-soft);font-weight:700}
.tags-end{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px}
.art-foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;padding-bottom:34px;border-top:1px solid var(--line);margin-top:26px}
.art-foot a{font-size:14px;font-weight:700;color:var(--orange)}

footer.site{background:#181C21;color:#8D96A1;font-size:13.5px;padding:26px 0;text-align:center;margin-top:40px}
footer.site a{color:#C9CFD6;text-decoration:underline}
footer.site .icp{margin-top:8px;font-size:12.5px;opacity:.82}
footer.site .icp a{color:inherit;text-decoration:none}
footer.site .icp a:hover{text-decoration:underline}

@media (max-width:900px){
  .layout{grid-template-columns:1fr;gap:30px;padding-top:30px}
  .col-side{position:static}
  .bhead{padding:36px 0 32px}
  .bhead-in{grid-template-columns:76px minmax(0,1fr);gap:18px}
  .bhead img.avatar{width:76px;height:76px}
  .bhead h1{font-size:23px}
  .bhead .tagline{font-size:14px}
  .nav a.link.hide-sm{display:none}
  .nav a.link{padding-right:0}
  .nav-in{gap:16px}
  .post{grid-template-columns:1fr;gap:12px;padding:22px 0}
  .post .date{display:flex;align-items:baseline;gap:8px}
  .post .date b{font-size:15px}
  .post .date span{font-weight:700}
  .post h3{font-size:17px}
  .art-head h1{font-size:24px}
  .art-head .sub{font-size:14.5px}
  .art-body{font-size:15px}
}