*{margin:0;padding:0;box-sizing:border-box}:root{--bg:#f5f7fa;--card:#fff;--text:#1a1a2e;--text2:#555;--accent:#2563eb;--accent2:#1d4ed8;--header:#0f172a;--border:#e2e8f0;--tag:#eef2ff}body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent2);text-decoration:underline}.container{max-width:1100px;margin:0 auto;padding:0 20px}header{background:var(--header);color:#fff;padding:18px 0;position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.15)}header .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}header h1{font-size:1.5rem;font-weight:700;letter-spacing:-.5px}header h1 a{color:#fff}header h1 a:hover{text-decoration:none;opacity:.9}
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