:root{--bg: #f6f8fb;--surface: #ffffff;--surface-soft: #eef3f8;--text: #172033;--muted: #68758a;--line: #dce4ee;--primary: #2563eb;--primary-dark: #1e40af;--accent: #0f766e;--warning: #b45309;--shadow: 0 18px 45px rgba(25, 38, 67, .1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Segoe UI,Microsoft YaHei,Arial,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer}.public-page{min-height:100vh}.top-nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px clamp(20px,5vw,72px);background:#ffffffe6;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.brand,.admin-brand{display:inline-flex;align-items:center;gap:10px;font-weight:800}.brand:before,.admin-brand:before{width:32px;height:32px;content:"";border-radius:8px;background:linear-gradient(135deg,#2563ebf2,#0f766ef2),#2563eb}.nav-links{display:flex;align-items:center;gap:22px;color:var(--muted);font-size:14px}.admin-link,.view-site{display:inline-flex;align-items:center;gap:8px;min-height:38px;padding:0 14px;color:#fff;background:var(--text);border-radius:8px}.hero{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:42px;align-items:center;min-height:calc(100vh - 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