:root{--bg: #f5f7fa;--card: #ffffff;--line: #e3e8ef;--text: #1f2937;--muted: #6b7280;--primary: #2563eb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Microsoft YaHei,sans-serif;font-size:14px}.center{min-height:100vh;display:flex;align-items:center;justify-content:center}.muted{color:var(--muted)}.small{font-size:12px}.error{color:#dc2626;margin:8px 0}.toast{margin-top:8px;color:var(--primary)}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:16px}.auth{width:360px}.auth h1{font-size:20px;margin:0 0 16px}.auth label{display:block;margin-bottom:12px;color:var(--muted)}input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff;color:inherit}button{padding:8px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer;font:inherit}button:hover{border-color:var(--primary);color:var(--primary)}button.primary{background:var(--primary);color:#fff;border-color:var(--primary);width:100%;margin-top:8px}button.tab{width:140px}button.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.layout header{display:flex;justify-content:space-between;align-items:center;padding:12px 24px;background:#fff;border-bottom:1px solid var(--line)}nav.tabs{display:flex;gap:8px;padding:12px 24px 0}main{padding:16px 24px 48px;max-width:1280px;margin:0 auto}h2{font-size:15px;margin:0 0 12px}.row{display:flex;align-items:center;gap:8px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:middle}th{color:var(--muted);font-weight:600}code{background:#f3f4f6;padding:2px 6px;border-radius:6px;letter-spacing:2px}.stats{display:flex;gap:16px;flex-wrap:wrap}.stat{background:#f9fafb;border:1px solid var(--line);border-radius:10px;padding:12px 20px;min-width:110px}.stat .value{font-size:22px;font-weight:700}