:root{--navy:#0b213b;--navy-2:#123b68;--blue:#1671e8;--sky:#6db6ff;--ink:#14263c;--muted:#66788d;--line:#d8e3ef;--soft:#f3f8fe;--danger:#bd2d35}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#edf4fb}.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(440px,1.08fr) minmax(480px,.92fr)}.brand-panel{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:100vh;padding:54px 64px 48px;overflow:hidden;color:#fff;background:linear-gradient(145deg,#081a30 0%,#0d2d50 58%,#154d82 100%)}.brand-panel:before{content:"";position:absolute;width:520px;height:520px;right:-210px;top:80px;border:1px solid rgba(126,190,255,.2);border-radius:50%;box-shadow:0 0 0 80px rgba(76,151,226,.055),0 0 0 160px rgba(76,151,226,.035)}.brand-panel:after{content:"";position:absolute;inset:auto 0 0;height:34%;background:linear-gradient(135deg,transparent 48%,rgba(109,182,255,.12) 48.2%,transparent 48.5%),linear-gradient(45deg,transparent 58%,rgba(109,182,255,.08) 58.2%,transparent 58.5%);background-size:84px 84px}.brand-mark,.brand-copy,.scope-note{position:relative;z-index:1}.brand-mark{display:flex;align-items:center;gap:12px;font-size:12px;letter-spacing:.12em}.brand-mark span{font-size:18px;font-weight:800}.brand-mark i{width:1px;height:18px;background:rgba(255,255,255,.42)}.brand-mark b{color:#a7c9ee;font-size:10px}.brand-copy{max-width:630px;margin:auto 0}.brand-copy p{margin:0 0 16px;color:#80bdff;font-size:14px;font-weight:700;letter-spacing:.08em}.brand-copy h1{margin:0;font-size:64px;line-height:1.08;letter-spacing:-.04em}.brand-copy span{display:block;max-width:560px;margin-top:24px;color:#c8daed;font-size:18px;line-height:1.75}.scope-note{display:flex;align-items:center;gap:11px;color:#bdd2e7;font-size:13px}.scope-note i{width:9px;height:9px;border:2px solid #6db6ff;border-radius:50%;box-shadow:0 0 0 5px rgba(109,182,255,.12)}.login-panel{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:42px;background:linear-gradient(160deg,#f8fbff,#e9f2fb)}.login-card{width:min(430px,100%);padding:42px 40px;border:1px solid rgba(183,204,226,.8);border-radius:14px;background:rgba(255,255,255,.94);box-shadow:0 24px 70px rgba(26,67,107,.13)}.mobile-brand{display:none}.kicker{margin:0 0 10px;color:var(--blue);font-size:11px;font-weight:800;letter-spacing:.14em}.login-card h2{margin:0;font-size:30px;letter-spacing:-.02em}.intro{margin:10px 0 30px;color:var(--muted);font-size:15px}.login-card label{display:block;margin:18px 0 8px;color:#344a61;font-size:14px;font-weight:700}.login-card input{width:100%;height:48px;border:1px solid var(--line);border-radius:7px;background:#fbfdff;padding:0 14px;color:var(--ink);font:inherit;font-size:16px;outline:none;transition:border-color .15s,box-shadow .15s}.login-card input:focus{border-color:#559cf0;box-shadow:0 0 0 3px rgba(22,113,232,.12)}.password-field{position:relative}.password-field input{padding-right:64px}.password-field button{position:absolute;right:8px;top:7px;height:34px;border:0;background:transparent;color:#3b6fa6;font:inherit;font-size:13px;cursor:pointer}.error{min-height:22px;margin-top:12px;color:var(--danger);font-size:13px;line-height:1.5}.submit{width:100%;height:50px;margin-top:8px;border:0;border-radius:7px;background:linear-gradient(90deg,#1264cc,#167be9);color:#fff;font:inherit;font-size:16px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:12px;box-shadow:0 9px 22px rgba(22,113,232,.22)}.submit:hover{filter:brightness(1.04)}.submit:focus-visible{outline:3px solid rgba(22,113,232,.28);outline-offset:3px}.submit:disabled{cursor:wait;opacity:.7}.submit i{font-size:20px;font-style:normal}.security-note{margin-top:30px;padding:14px 15px;border-left:3px solid #4f95e5;background:var(--soft)}.security-note span{color:#215b98;font-size:12px;font-weight:800}.security-note p{margin:5px 0 0;color:var(--muted);font-size:12px;line-height:1.6}.copyright{margin:24px 0 0;color:#7d8da0;font-size:12px}.mobile-brand{color:#286fc2;font-size:11px;font-weight:800;letter-spacing:.1em}@media(max-width:880px){.auth-shell{display:block}.brand-panel{display:none}.login-panel{padding:24px;min-height:100vh}.login-card{padding:34px 26px}.mobile-brand{display:block;margin-bottom:32px}.login-card h2{font-size:27px}}@media(max-width:420px){.login-panel{padding:15px}.login-card{padding:30px 20px;border-radius:11px}.copyright{text-align:center}}