:root{--bg: #ffffff;--ink: #1a2a4a;--accent: #2ee0e0;--page-max: 1980px}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font:16px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif}.site-header{display:flex;align-items:center;justify-content:space-between;max-width:var(--page-max);margin:0 auto;padding:24px 48px}.site-header .brand{font-size:24px;color:var(--ink);text-decoration:none}.site-header .brand em{color:var(--accent);font-style:italic}.site-header nav{display:flex;gap:32px}.site-header nav a{color:var(--ink);text-decoration:none;font-size:15px}main{max-width:var(--page-max);margin:0 auto}.placeholder{padding:200px 48px;border-top:1px dashed #ccc;color:#888}