:root{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:#172033;background:#f5f6fb}
*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 15% 5%,#eeeaff,transparent 35%),radial-gradient(circle at 90% 90%,#e8f7ff,transparent 35%),#f6f7fb}
.auth-card{width:min(420px,calc(100vw - 32px));padding:36px;border:1px solid #e5e7ef;border-radius:24px;background:rgba(255,255,255,.94);box-shadow:0 24px 70px rgba(35,42,64,.12)}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:30px}.brand-mark{width:44px;height:44px;display:grid;place-items:center;border-radius:14px;color:#fff;background:linear-gradient(145deg,#7768ef,#5142cc);font-weight:800}.brand strong,.brand small{display:block}.brand small{margin-top:3px;color:#8991a2;font-size:11px}
h1{font-size:25px;margin:0 0 8px}p{margin:0 0 24px;color:#788194;font-size:13px;line-height:1.7}
label{display:block;margin-top:15px;color:#596275;font-size:12px;font-weight:650}input{width:100%;height:46px;margin-top:7px;padding:0 13px;border:1px solid #dfe2ea;border-radius:11px;outline:0;font-size:14px}input:focus{border-color:#7565eb;box-shadow:0 0 0 3px rgba(101,86,232,.09)}
button{width:100%;height:46px;margin-top:22px;border:0;border-radius:11px;color:#fff;background:#6556e8;font-size:14px;font-weight:700;cursor:pointer}button:disabled{opacity:.55;cursor:wait}
.error{min-height:20px;margin:12px 0 -8px;color:#c7354f;font-size:12px}.hint{margin:20px 0 0;padding-top:18px;border-top:1px solid #eef0f4;font-size:11px;text-align:center}.hint a{color:#6556e8;text-decoration:none}