*{box-sizing:border-box;margin:0;padding:0}:root{--primary: #2f8f7d;--primary-light: #eaf5f1;--accent: #e8935a;--accent-light: #fcefe1;--bg: #fbf3e7;--card: #fffcf7;--text: #3d3226;--text-secondary: #9c8973;--border: #ecdfc9;--danger: #d96b5c;--success: #5fa87a;--shadow-warm: 0 4px 20px rgba(196, 149, 92, .16);--shadow-warm-sm: 0 2px 10px rgba(196, 149, 92, .14)}body{font-family:Nunito,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{background:var(--card);border-bottom:1px solid var(--border);box-shadow:0 2px 12px #c4955c14;position:sticky;top:0;z-index:1000}.header-inner{max-width:1100px;margin:0 auto;padding:0 16px;height:52px;display:flex;align-items:center;gap:24px}.brand{font-weight:800;font-size:18px;color:var(--primary);text-decoration:none}.nav{display:flex;gap:4px;flex:1}.nav-link{padding:6px 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