:root{--blue:#4d70f6;--ink:#17243a;--muted:#7d8ba3}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:"Microsoft YaHei UI","Microsoft YaHei",sans-serif;color:var(--ink);background:#f3f5fa}.login-shell{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr}.login-brand{display:grid;align-content:center;padding:10vw;background:linear-gradient(145deg,#151d38,#26345e);color:#fff;position:relative;overflow:hidden}.login-brand::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-100px;bottom:-140px;background:radial-gradient(circle,rgba(82,117,250,.38),transparent 68%)}.brand-badge{width:58px;height:58px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(145deg,#39bf91,#5bd4aa);font-size:30px;font-weight:800;box-shadow:0 10px 25px rgba(55,198,151,.25)}.eyebrow{font-size:12px;letter-spacing:.18em;color:#92a4c8;margin:24px 0 8px}.login-brand h1{font-size:40px;margin:0}.brand-copy{max-width:520px;color:#b9c4d9;line-height:1.8;font-size:15px}.feature-list{display:grid;gap:12px;margin-top:30px}.feature-list span{color:#dce4f4;font-size:14px}.feature-list span::before{content:"✓";display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;margin-right:9px;background:rgba(83,213,167,.15);color:#65d8ae;font-size:11px}.login-card{align-self:center;justify-self:center;width:min(440px,85%);padding:38px;background:#fff;border-radius:18px;box-shadow:0 20px 60px rgba(25,41,78,.12)}.login-card .eyebrow{color:#8796b3;margin-top:0}.login-card h2{margin:0;font-size:28px}.subtitle{color:var(--muted);font-size:13px;margin:9px 0 26px}form{display:grid;gap:16px}label{display:grid;gap:7px;color:#536178;font-size:13px}input{height:44px;border:1px solid #dce3ef;border-radius:8px;padding:0 12px;outline:0;font-size:14px;transition:.18s}input:focus{border-color:#7b99ff;box-shadow:0 0 0 3px rgba(77,112,246,.12)}button{height:44px;border:0;border-radius:8px;background:linear-gradient(135deg,#5578fa,#4265ed);color:#fff;font-size:14px;font-weight:700;cursor:pointer;box-shadow:0 7px 16px rgba(77,112,246,.25)}button:hover{transform:translateY(-1px)}.error{min-height:18px;margin:0;color:#d65f6e;font-size:12px}.demo-accounts{margin-top:25px;padding:14px;border-radius:9px;background:#f7f8fb;color:#758299;font-size:11px;line-height:1.8}.demo-accounts strong{color:#536178}.demo-accounts p{margin:2px 0}.demo-accounts small{color:#9a7a45}@media(max-width:800px){.login-shell{grid-template-columns:1fr}.login-brand{display:none}.login-card{margin:30px auto;width:min(440px,90%)}}