:root{font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:#edf2f7;background:#090d12}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 20% 10%,rgba(36,104,99,.22),transparent 34%),radial-gradient(circle at 80% 80%,rgba(41,64,110,.2),transparent 38%),#090d12}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);background-size:22px 22px}.login-card{width:min(430px,100%);display:grid;gap:22px;padding:34px;border:1px solid #26303b;border-radius:18px;background:rgba(15,20,27,.94);box-shadow:0 30px 90px rgba(0,0,0,.5);backdrop-filter:blur(18px)}.login-mark{width:52px;height:52px;display:grid;place-items:center;border-radius:14px;background:#e9efed;color:#101820;font-weight:900;letter-spacing:-1px}.eyebrow{margin:0 0 7px;color:#70b8ae;font-size:11px;letter-spacing:.18em}.login-card h1{margin:0;font-size:27px}.sub{margin:8px 0 0;color:#8e9ba8;line-height:1.6;font-size:14px}form{display:grid;gap:15px}label{display:grid;gap:7px;color:#aeb8c2;font-size:13px}input{width:100%;height:46px;border:1px solid #34404c;border-radius:10px;background:#0b1016;color:#fff;padding:0 13px;outline:none}input:focus{border-color:#70b8ae;box-shadow:0 0 0 3px rgba(112,184,174,.14)}button{height:46px;border:0;border-radius:10px;background:#e7eeeb;color:#11191d;font-weight:800;cursor:pointer}button:hover{background:#fff}button:disabled{opacity:.55;cursor:wait}#loginError{min-height:20px;margin:0;color:#ff8f86;font-size:13px}.security-note{margin:0;color:#6f7b87;font-size:12px;text-align:center}