:root{color-scheme:light;font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:#172238;background:#f1f5f9}*{box-sizing:border-box}body{margin:0}.login-shell{display:grid;min-height:100vh;place-items:center;padding:24px;background:radial-gradient(circle at top,#fff 0,#eef3f8 60%,#e8eef5 100%)}.login-card{width:min(420px,100%);padding:34px;border:1px solid #dce3eb;border-radius:18px;background:#fff;box-shadow:0 22px 60px rgba(22,34,56,.12)}.identity{display:flex;align-items:center;gap:12px;color:#172238}.identity span{display:grid;width:46px;height:46px;place-items:center;border-radius:12px;background:#255bc7;color:#fff;font-weight:800}.identity strong{font-size:16px}h1{margin:30px 0 8px;font-size:30px}.lead{margin:0 0 24px;color:#66748a;font-size:14px}.error{margin-bottom:18px;padding:11px 13px;border:1px solid #fecaca;border-radius:9px;background:#fff1f2;color:#b42318;font-size:13px}label{display:block;margin:0 0 16px;color:#344054;font-size:13px;font-weight:650}input{display:block;width:100%;margin-top:7px;padding:13px 14px;border:1px solid #ccd5e0;border-radius:10px;outline:none;font:inherit;font-weight:400}input:focus{border-color:#3972d9;box-shadow:0 0 0 3px rgba(57,114,217,.12)}button,.social a{display:flex;min-height:44px;align-items:center;justify-content:center;border:0;border-radius:10px;text-decoration:none;font:inherit;font-weight:700;cursor:pointer}.primary{width:100%;background:#255bc7;color:#fff}.divider{display:flex;align-items:center;gap:12px;margin:24px 0 16px;color:#98a2b3;font-size:12px}.divider:before,.divider:after{height:1px;flex:1;background:#e4e7ec;content:""}.social{display:grid;grid-template-columns:1fr 1fr;gap:12px}.wechat{background:#edf8ee;color:#25833a}.qq{background:#eef5ff;color:#2274c9}.social .disabled{cursor:not-allowed;filter:grayscale(1);opacity:.48}.hint{margin:14px 0 0;color:#98a2b3;font-size:12px;line-height:1.55}@media(max-width:480px){.login-card{padding:25px 20px;border-radius:14px}.social{grid-template-columns:1fr}}