:root{font-family:Inter,"Microsoft YaHei UI","PingFang SC",sans-serif;color:#15263b;background:#eef5fa}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 15% 10%,rgba(31,174,192,.18),transparent 32%),radial-gradient(circle at 90% 4%,rgba(73,96,201,.14),transparent 30%),linear-gradient(150deg,#f9fcfe,#eaf2f8)}.auth-shell{display:grid;min-height:100vh;place-items:center;padding:28px}.auth-card{width:min(460px,100%);padding:34px;border:1px solid rgba(102,141,183,.24);border-radius:24px;background:rgba(255,255,255,.94);box-shadow:0 28px 75px rgba(30,61,99,.17)}.auth-brand{display:flex;align-items:center;gap:11px;color:#245083;text-decoration:none}.auth-brand span{display:grid;width:39px;height:39px;place-items:center;border-radius:12px;color:#fff;background:linear-gradient(145deg,#1aa6ba,#3158b8);font-size:20px;font-weight:950}.auth-brand b{font-size:12px;letter-spacing:.13em}.eyebrow{margin:28px 0 7px;color:#168caa;font-size:10px;font-weight:950;letter-spacing:.17em}.auth-card h1{margin:0;font-size:30px;letter-spacing:-.035em}.intro{margin:10px 0 24px;color:#6b7b90;line-height:1.7}form{display:grid;gap:15px}label{display:grid;gap:7px;color:#4f647d;font-size:12px;font-weight:900}input{width:100%;height:46px;padding:0 12px;border:1px solid #c8d7e7;border-radius:10px;outline:0;font:inherit}input:focus{border-color:#367fbd;box-shadow:0 0 0 3px rgba(54,127,189,.13)}button{height:47px;border:1px solid #1c4c8d;border-radius:11px;color:#fff;background:linear-gradient(135deg,#2366ad,#183f7d);font:inherit;font-weight:900;cursor:pointer}.message{min-height:18px;margin:0;color:#b03434;font-size:12px}.message.is-success{color:#137562}.back{display:inline-block;margin-top:20px;color:#496d95;font-size:12px;font-weight:800;text-decoration:none}@media(max-width:520px){.auth-shell{padding:16px}.auth-card{padding:25px 21px;border-radius:18px}.auth-card h1{font-size:26px}}