:root{--ink:#172033;--muted:#667085;--line:#dfe4ec;--blue:#155eef;--navy:#0c1b33;--bad:#b42318}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#eef2f7;color:var(--ink);font-family:"Microsoft YaHei UI","PingFang SC",system-ui,sans-serif}.login-shell{min-height:100vh;display:grid;grid-template-columns:minmax(420px,1.05fr) minmax(420px,.95fr)}.login-brand{padding:9vh 8vw;display:flex;flex-direction:column;justify-content:center;background:radial-gradient(circle at 15% 15%,#234e91 0,transparent 34%),linear-gradient(135deg,#081529,#102b55);color:#fff}.brand-mark{width:62px;height:62px;display:grid;place-items:center;margin-bottom:46px;border:1px solid rgba(255,255,255,.28);border-radius:18px;background:rgba(255,255,255,.1);font:800 21px Consolas,monospace;letter-spacing:.08em}.login-brand span,.login-card form>span{font-size:11px;font-weight:800;letter-spacing:.15em;color:#84adff}.login-brand h1{max-width:650px;margin:10px 0 18px;font-size:clamp(32px,4vw,54px);line-height:1.16}.login-brand p{max-width:620px;margin:0;color:#c8d4e7;font-size:16px;line-height:1.8}.security-note{max-width:620px;display:grid;gap:5px;margin-top:54px;padding:16px 18px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:rgba(255,255,255,.07)}.security-note b{font-size:13px}.security-note span{color:#c8d4e7;font-size:12px;letter-spacing:0}.login-card{display:flex;flex-direction:column;justify-content:center;padding:8vh clamp(36px,8vw,140px);background:#fff}.login-card form{display:grid;gap:15px;max-width:440px}.login-card h2{margin:-4px 0 0;font-size:30px}.login-card p{margin:-7px 0 9px;color:var(--muted);font-size:13px;line-height:1.65}.login-card label{display:grid;gap:7px;color:#344054;font-size:13px;font-weight:700}.login-card input{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 13px;background:#fff;color:var(--ink);font:inherit;outline:none}.login-card input:focus{border-color:#84adff;box-shadow:0 0 0 4px #eef4ff}.login-card button{margin-top:4px;border:0;border-radius:10px;padding:13px;background:var(--blue);color:#fff;font:700 14px inherit;cursor:pointer}.login-card button:disabled{opacity:.55;cursor:wait}.login-card .text-button{margin-top:-6px;background:transparent;color:var(--muted)}.message{max-width:440px;min-height:24px;margin-top:14px;color:var(--bad);font-size:13px}.loading-panel{max-width:440px;display:flex;align-items:center;gap:12px;color:var(--muted)}.loading-panel i{width:20px;height:20px;border:2px solid #d0d5dd;border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:900px){.login-shell{grid-template-columns:1fr}.login-brand{min-height:300px;padding:48px 28px}.brand-mark{margin-bottom:22px}.login-brand h1{font-size:34px}.security-note{margin-top:25px}.login-card{padding:46px 28px;min-height:520px}}