:root{--blue: #2f7bff;--ink: #0e1726;--muted: #6b7585;--line: #e7eaf0;--bg: #f6f8fc;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}.center{min-height:100vh;display:grid;place-items:center}.muted{color:var(--muted)}.error{color:#e5484d;font-size:14px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px}.brand{font-weight:800;font-size:20px}.brand span{color:var(--blue)}.login{width:340px;display:flex;flex-direction:column;gap:14px}.login-head{display:flex;align-items:center;justify-content:space-between}.login h1{margin:0;font-size:20px}.login label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--muted)}.login input{padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:15px}.login input:focus{outline:none;border-color:var(--blue)}button{background:var(--blue);color:#fff;border:none;border-radius:9px;padding:10px 16px;font-size:14px;font-weight:600;cursor:pointer}button.ghost{background:transparent;color:var(--muted);border:1px solid var(--line)}button.ghost.danger{color:#e5484d;border-color:#f3c2c4}button.lang{background:#fff;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:13px}.shell{min-height:100vh}.topbar{display:flex;justify-content:space-between;align-items:center;height:60px;padding:0 24px;background:#fff;border-bottom:1px solid var(--line)}.topbar-right{display:flex;align-items:center;gap:12px}.content{max-width:1000px;margin:24px auto;padding:0 24px;display:grid;gap:20px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}.stat strong{display:block;font-size:28px;font-weight:800}.stat span{color:var(--muted);font-size:14px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:600}.badge{padding:2px 9px;border-radius:999px;font-size:12px;font-weight:700}.badge.ok{background:#e3f8f0;color:#129a6b}.badge.bad{background:#ffe6e6;color:#e5484d}