:root{
  --txt:#0a1b2b;
  --sub:#4b5563;
  --muted:#6b7280;
  --bg:#ffffff;
  --card:#f8fafc;
  --line:#e6e9ee;
  --brand:#0b72ee;
  --brand-ghost:rgba(11,114,238,.12);
  --radius:14px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--txt);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Microsoft YaHei",sans-serif}
img{display:block;max-width:100%}
a{color:var(--txt);text-decoration:none}
h1,h2{margin:0 0 12px}
p{margin:8px 0 0}

/* Navigation - exactly match official site */
.top{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 16px;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{width:28px;height:28px}
.brand-name{font-weight:700}
.nav{display:flex;align-items:center;gap:18px}
.lang{display:flex;gap:4px}
.lang button{
  padding:6px 10px;border:1px solid var(--line);background:#fff;border-radius:999px;cursor:pointer
}
.lang button.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* Main layout */
.section{max-width:960px;margin:0 auto;padding:16px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;
  box-shadow:0 2px 6px rgba(0,0,0,.03);margin-bottom:16px;
}
.card-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-hd h2{margin:0;font-weight:700}
.tools{display:flex;gap:12px;align-items:center;flex-wrap:wrap}

/* Buttons */
.btn{padding:12px 18px;border-radius:12px;background:#eef2f7;border:1px solid var(--line);cursor:pointer;transition:box-shadow 0.2s}
.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn.ghost{background:transparent}
.btn.danger{border-color:#ff7a7a;color:#b62222}
.btn.warning{background:#ff9500;color:#fff;border-color:#ff9500}
.btn:hover{box-shadow:0 4px 14px rgba(0,0,0,.08)}

/* Hero section - centered and compact */
.hero{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  padding:32px 20px;gap:24px;
}
.hero-logo{order:1}
.hero-logo img{
  width:clamp(160px, 48vw, 240px);height:auto;
  filter:drop-shadow(0 10px 26px rgba(0,0,0,.06));
}
.hero-text{order:2;max-width:600px}
.hero-text h1{font-size:clamp(24px, 5vw, 32px);line-height:1.2;margin-bottom:12px}
.hero-text p{color:var(--sub);margin-bottom:20px;font-size:16px}
.hero-cta{order:3;display:flex;gap:12px;flex-wrap:wrap;justify-content:center}

/* User info box */
.userbox{
  order:4;margin-top:20px;max-width:400px;width:100%;
  display:flex;align-items:center;gap:12px;padding:16px;
  background:var(--card);border-radius:12px;border:1px solid var(--line);
}
.userbox .meta{flex:1}
.userbox .name{font-weight:600;margin-bottom:4px}
.chip{display:inline-block;padding:2px 8px;background:#e6f3ff;color:#0366d6;border-radius:12px;font-size:11px}
.avatar{width:40px;height:40px;border-radius:50%}

/* Repository list */
.repolist{list-style:none;margin:0;padding:0}
.repo{
  border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;
  margin-bottom:10px;cursor:pointer;transition:all 0.2s;background:#fff;
}
.repo:hover{background:var(--card);border-color:var(--brand);box-shadow:0 4px 14px rgba(0,0,0,.08)}
.repo .row{display:flex;align-items:flex-start;justify-content:space-between}
.repo .left{flex:1}
.repo .name{font-weight:600;margin-bottom:8px}
.repo .meta{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:8px}
.repo .desc{color:#666;font-size:14px;line-height:1.4}
.repo .right{display:flex;align-items:center;gap:8px}

/* Repository detail */
.readme-box{
  background:#fafafa;border:1px solid var(--line);border-radius:8px;
  padding:16px;overflow:auto;max-height:400px;
}
.readme-box h1,.readme-box h2,.readme-box h3{margin-top:1em}
.readme-box pre{background:#f6f8fa;border:1px solid #eee;border-radius:8px;padding:8px;overflow:auto}
.readme-box code{background:#f6f8fa;padding:2px 4px;border-radius:4px}
.readme-box a{color:#0366d6}

/* Utility classes */
.hidden{display:none!important}
.muted{color:var(--muted)}
.empty{text-align:center;color:#999;padding:32px}
.tag{display:inline-block;padding:2px 8px;border:1px solid #e5e5e5;border-radius:999px;font-size:12px;margin-left:6px;background:#fff}

/* Menu */
.menu{position:absolute;background:#fff;border:1px solid #ddd;border-radius:8px;padding:4px;box-shadow:0 4px 12px rgba(0,0,0,0.1);z-index:100}
.menu .item{display:block;width:100%;padding:8px 12px;border:none;background:none;text-align:left;cursor:pointer;border-radius:4px}
.menu .item:hover{background:#f5f5f5}

/* Responsive */
@media (max-width: 768px) {
  .section{padding:12px}
  .card{padding:12px}
  .tools{flex-wrap:wrap}
  .nav{gap:12px}
  .hero{padding:24px 16px}
}