:root{
  --bg:#0A0A0A;
  --card:#111214;
  --muted:#9CA3AF;
  --text:#E5E7EB;
  --hi:#F5F5F5;
  --line:#1F2937;
  --accent:#8B5CF6; /* 低饱和紫，谨慎使用 */
  --radius:16px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", Arial, "Noto Sans CJK SC", "Apple Color Emoji","Segoe UI Emoji";
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
/* NAV */
header{
  position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);
  backdrop-filter:saturate(120%) blur(8px); background:rgba(10,10,10,.6)
}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px}
.logo{
  width:28px;height:28px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,#1F2937, #0B0B0B);border:1px solid #2A2F38; box-shadow: inset 0 0 0 1px rgba(255,255,255,.03);
  font-weight:700;color:var(--hi)
}
.nav a{opacity:.9}
.nav a:hover{opacity:1}
/* 当前页面导航高亮 */
.nav a.active {
  color: var(--hi);
  font-weight: 600;
  opacity: 1;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}
.menu{display:flex;gap:18px;align-items:center}
.btn{
  display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);
  background:linear-gradient(180deg,#121318,#0A0A0A);
  padding:10px 14px;border-radius:12px;transition:.25s;box-shadow:var(--shadow);
}
.btn:hover{transform:translateY(-1px);border-color:#2a2f38}
.ghost{background:#0a0a0a;border-color:#2a2f38;box-shadow:none}
/* HERO */
.hero{padding:96px 0 64px;border-bottom:1px solid var(--line)}
.kicker{letter-spacing:.16em;text-transform:uppercase;font-size:12px;color:var(--muted)}
.title{font-size:46px;line-height:1.1;margin:16px 0 12px;font-weight:700}
.subtitle{color:var(--muted);max-width:680px}
.hero-cta{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.chips{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.chip{border:1px solid var(--line);padding:6px 10px;border-radius:999px;color:var(--muted);font-size:12px}
/* SECTIONS */
section{padding:64px 0;border-bottom:1px solid var(--line)}
h2{font-size:24px;margin:0 0 16px}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.card{
  grid-column:span 12;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius); padding:20px;box-shadow:var(--shadow); position:relative;
}
.badge{
  position:absolute;top:14px;right:14px;font-size:11px;color:var(--muted);
  border:1px dashed #2c3440;border-radius:999px;padding:4px 8px;background:#0c0d11
}
.soon{opacity:.7}
.muted{color:var(--muted)}
.list{display:grid;gap:12px}
.mono{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace}
/* BLOG */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.input{
  background:#0a0a0a;border:1px solid var(--line);border-radius:12px;padding:10px 12px;
  color:var(--text);min-width:220px;outline:none
}
.tag{padding:8px 12px;border:1px solid var(--line);border-radius:12px;color:var(--muted);cursor:pointer}
.tag.active{border-color:#3b3f47;color:var(--hi)}
.post{display:flex;flex-direction:column;gap:6px}
.post h3{margin:0;font-size:18px}
.aph{margin-top:6px;color:#bdbfc6;font-style:italic;font-size:13px}
/* RESOURCES */
.res{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.res .item{grid-column:span 12;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.item h4{margin:0 0 6px;font-size:16px}
.item .note{color:var(--muted);font-size:14px}
.item .meta{margin-top:8px;font-size:12px;color:var(--muted)}
.rc{color:#D1D5DB}
.disclose{font-size:12px;color:#a1a1aa;margin-top:6px}
/* CONTACT */
form{display:grid;gap:10px}
textarea{min-height:120px;resize:vertical}
input, textarea{
  background:#0a0a0a;border:1px solid var(--line);border-radius:12px;padding:12px;color:var(--text);outline:none
}
.ok{border-color:#334155}
/* FOOTER */
footer{padding:28px 0 60px}
.foot{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;color:var(--muted);border-top:1px solid var(--line);padding-top:18px}
.links{display:flex;gap:14px;flex-wrap:wrap}
/* RESPONSIVE */
@media (min-width:700px){
  .title{font-size:58px}
  .card.split{display:grid;grid-template-columns:1.2fr 1fr;gap:18px}
  .grid-2>.card{grid-column:span 6}
  .grid-3>.card{grid-column:span 4}
  .res .item{grid-column:span 6}
}


/* Markdown渲染美化 */
#content h1, #content h2, #content h3 {
  margin-top: 28px;
  margin-bottom: 14px;
  font-weight: 600;
}

#content p, #content li {
  color: var(--muted);
  line-height: 1.75;
}

#content blockquote {
  border-left: 3px solid var(--accent);
  margin: 16px 0;
  padding-left: 12px;
  color: #d1d5db;
  font-style: italic;
}

#content ul, #content ol {
  margin-left: 24px;
  margin-bottom: 12px;
}

#content code {
  background: #1f2937;
  padding: 3px 6px;
  border-radius: 6px;
  font-size: 14px;
}