:root{--bg:#f5f7fb;--panel:#fff;--line:#e5e7eb;--text:#1f2937;--muted:#6b7280;--brand:#2563eb;--brand-dark:#1d4ed8;--danger:#dc2626;--ok:#16a34a;--shadow-soft:0 14px 34px rgba(31,41,55,.1);--shadow-card:0 10px 28px rgba(79,70,229,.12)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Microsoft YaHei,PingFang SC,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px}.card,.login-card,.panel,.stat-card{background:var(--panel);border:1px solid var(--line);border-radius:8px}.login-card{width:min(420px,100%);padding:28px}.login-card h1,.page-title h1{margin:0;font-size:24px}.form-grid{display:grid;grid-gap:14px;gap:14px}.form-row{display:grid;grid-gap:6px;gap:6px}.form-row label{color:var(--muted);font-size:14px}.input,.select,.textarea{width:100%;min-width:0;border:1px solid var(--line);border-radius:6px;padding:10px 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