/* ============ 星空主题 · 大哥的个人主页 ============ */
:root{
  --bg-deep:#050816;
  --bg-mid:#0a1128;
  --bg-light:#101b3d;
  --accent:#7c8cff;
  --accent2:#ff7ce0;
  --text:#e6ecff;
  --text-dim:#93a3c9;
  --glass:rgba(255,255,255,0.04);
  --glass-border:rgba(255,255,255,0.10);
  --radius:16px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:linear-gradient(160deg,var(--bg-deep) 0%,var(--bg-mid) 55%,#0d0b2a 100%);
  color:var(--text);
  min-height:100vh;
  overflow-x:hidden;
  position:relative;
}

/* ---------- 星空背景 ---------- */
#stars,#stars2,#shooting{
  position:fixed;inset:0;pointer-events:none;z-index:0;
}
#stars,#stars2{width:100%;height:100%}

/* ---------- 容器 ---------- */
.wrap{position:relative;z-index:1;max-width:1080px;margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(5,8,22,0.55);
  border-bottom:1px solid var(--glass-border);
}
.nav-inner{max-width:1080px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between}
.logo{
  font-size:1.25rem;font-weight:800;letter-spacing:1px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  text-decoration:none;
}
.nav ul{list-style:none;display:flex;gap:26px;align-items:center}
.nav ul a{color:var(--text-dim);text-decoration:none;font-size:.95rem;transition:color .25s}
.nav ul a:hover{color:var(--text)}

/* ---------- Hero ---------- */
.hero{text-align:center;padding:110px 24px 90px;position:relative}
.hero .avatar{
  width:120px;height:120px;border-radius:50%;margin:0 auto 28px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:flex;align-items:center;justify-content:center;
  font-size:3rem;box-shadow:0 0 60px rgba(124,140,255,.45);
  border:3px solid rgba(255,255,255,.2);
}
.hero h1{font-size:3rem;font-weight:800;letter-spacing:2px;line-height:1.2}
.hero h1 .hl{background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .sub{margin-top:18px;font-size:1.2rem;color:var(--text-dim)}
.hero .tagline{margin-top:10px;color:#6b7aa8;font-size:.95rem}
.hero .cta{margin-top:34px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{
  padding:12px 30px;border-radius:40px;text-decoration:none;font-size:.98rem;
  transition:transform .25s,box-shadow .25s;display:inline-block;
}
.btn-primary{background:linear-gradient(90deg,var(--accent),var(--accent2));color:#050816;font-weight:700;box-shadow:0 6px 24px rgba(124,140,255,.4)}
.btn-ghost{border:1px solid var(--glass-border);color:var(--text);background:var(--glass)}
.btn:hover{transform:translateY(-3px)}

/* ---------- 区块 ---------- */
section{position:relative;padding:60px 0}
.sec-title{
  font-size:1.6rem;font-weight:700;margin-bottom:36px;display:flex;align-items:center;gap:12px;
}
.sec-title::before{content:"";width:6px;height:26px;border-radius:3px;background:linear-gradient(180deg,var(--accent),var(--accent2))}

/* ---------- 文章卡片 ---------- */
.posts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.post-card{
  background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius);
  padding:24px;transition:transform .25s,border-color .25s;position:relative;overflow:hidden;
}
.post-card:hover{transform:translateY(-6px);border-color:var(--accent)}
.post-meta{display:flex;gap:12px;font-size:.8rem;color:var(--text-dim);margin-bottom:12px;align-items:center}
.post-tag{background:rgba(124,140,255,.18);color:var(--accent);padding:2px 10px;border-radius:20px;font-size:.72rem}
.post-card h3{font-size:1.05rem;margin-bottom:8px;line-height:1.5}
.post-card h3 a{color:var(--text);text-decoration:none}
.post-card h3 a:hover{color:var(--accent)}
.post-card p{font-size:.9rem;color:var(--text-dim);line-height:1.7;margin-bottom:14px}
.read-more{color:var(--accent2);text-decoration:none;font-size:.88rem;font-weight:600}
.read-more:hover{text-decoration:underline}

/* ---------- 关于 ---------- */
.about-card{
  background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius);
  padding:30px;line-height:2;color:var(--text-dim);
}
.about-card strong{color:var(--text)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{background:rgba(124,140,255,.12);border:1px solid rgba(124,140,255,.25);color:var(--accent);padding:6px 16px;border-radius:30px;font-size:.82rem}

/* ---------- 页脚 ---------- */
footer{padding:36px 0 46px;text-align:center;color:var(--text-dim);font-size:.85rem;border-top:1px solid var(--glass-border);margin-top:20px}
footer a{color:var(--accent);text-decoration:none}

/* ---------- 响应式 ---------- */
@media(max-width:640px){
  .hero{padding:80px 16px 60px}
  .hero h1{font-size:2.1rem}
  .nav ul{gap:16px}
  .nav ul a{font-size:.85rem}
}