:root{--primary: #2b6cb0;--primary-dark: #1e4e79;--accent: #319795;--bg: #f7fafc;--surface: #ffffff;--text: #1a202c;--muted: #718096;--border: #e2e8f0;--danger: #e53e3e;--success: #38a169;--radius: 10px;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 6px 20px rgba(0, 0, 0, .04)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1080px;margin:0 auto;padding:0 24px}.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}.brand{display:flex;align-items:center;gap:10px;color:var(--text)}.brand:hover{text-decoration:none}.brand .logo{width:36px;height:36px;border-radius:9px;flex:none;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:grid;place-items:center;font-weight:700;font-size:18px}.brand .name{font-size:18px;font-weight:700}.brand .sub{font-size:12px;color:var(--muted)}.site-nav{display:flex;align-items:center;gap:4px}.site-nav a{padding:8px 12px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:500}.site-nav a:hover{color:var(--primary);background:var(--bg);text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:9px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s;white-space:nowrap;font-family:inherit}.btn:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);color:#fff}.btn-sm{padding:7px 12px;font-size:13px}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-block{width:100%}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;margin-bottom:16px}.field{display:grid;gap:6px;margin-bottom:16px}.field label{font-size:13px;font-weight:500;color:var(--muted)}.input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;background:#fff;color:var(--text)}.input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2b6cb026}.hero{text-align:center;padding:84px 0 72px}.hero .logo-lg{width:72px;height:72px;border-radius:18px;margin:0 auto 24px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:grid;place-items:center;font-size:34px;font-weight:700}.hero h1{font-size:40px;font-weight:800;letter-spacing:.5px}.hero .tagline{font-size:18px;color:var(--muted);margin:16px 0 32px}.hero .actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;padding-bottom:40px}.features .card{margin-bottom:0}.features .card h3{font-size:16px;margin-bottom:8px}.features .card p{font-size:14px;color:var(--muted)}.site-footer{border-top:1px solid var(--border);margin-top:48px;padding:28px 0;color:var(--muted);font-size:13px;text-align:center}.page{padding:32px 0}.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.muted{color:var(--muted)}.error{color:var(--danger);font-size:14px}.success{color:var(--success);font-size:14px}.mt-12{margin-top:12px}.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}