:root{--ink:#14213d;--muted:#6e7892;--line:#e7eaf1;--bg:#f6f7fb;--card:#fff;--brand:#5846e8;--brand2:#7b6cf6;--green:#23ad73;--amber:#d88b18;--red:#db5361;--shadow:0 18px 55px rgba(31,40,77,.08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--ink)}button,input,textarea,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}.login-wrap{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 20% 10%,#e9e5ff 0,transparent 35%),radial-gradient(circle at 85% 85%,#ddf8ee 0,transparent 30%),#f8f8fc}.login-card{width:min(420px,calc(100% - 32px));background:#fff;padding:44px;border-radius:24px;box-shadow:var(--shadow);text-align:center}.logo{width:54px;height:54px;border-radius:18px;background:linear-gradient(145deg,var(--brand2),var(--brand));color:#fff;display:grid;place-items:center;font-weight:800;font-size:25px;margin:0 auto 20px;box-shadow:0 12px 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