:root{font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:#193b48;background:#f6f8fa;font-synthesis:none}*{box-sizing:border-box}body{margin:0}.login-layout{display:grid;grid-template-columns:minmax(360px,1fr) minmax(420px,1fr);min-height:100vh}.intro{position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;min-height:100vh;padding:48px 10%;color:#fff;background:radial-gradient(circle at 100% 10%,#277e7955,transparent 55%),linear-gradient(150deg,#153847,#163e49 55%,#18574f)}.intro:after{content:"";position:absolute;width:560px;height:560px;right:-310px;bottom:-270px;border:1px solid #ffffff18;border-radius:50%;box-shadow:0 0 0 65px #ffffff04,0 0 0 130px #ffffff04;pointer-events:none}.brand{display:flex;gap:12px;align-items:center;color:inherit;text-decoration:none;font-size:22px;font-weight:650;letter-spacing:2px}.brand small{display:block;margin-top:4px;font-size:10px;font-weight:400;letter-spacing:3px;color:#c8e2df}.brand-symbol{display:grid;place-items:center;width:46px;height:46px;border:1px solid #b7dcd770;border-radius:13px;font-size:27px;background:#ffffff0a}.intro-copy{position:relative;z-index:1;padding:70px 0 90px}.eyebrow{font-size:13px;letter-spacing:4px;color:#aed6cf}.intro h1{font-size:clamp(28px,3.1vw,46px);font-weight:600;line-height:1.65;letter-spacing:1px;margin:22px 0}.intro-copy>p:last-child{font-size:15px;line-height:2;color:#c1d6d9}.intro-footer{display:flex;align-items:center;gap:8px;font-size:12px;color:#bad2d4}.status-dot{width:6px;height:6px;border-radius:50%;background:#79c7b2}.login-panel{display:flex;align-items:center;justify-content:center;flex-direction:column;padding:60px 45px 28px;background:#fbfcfd}.login-card{width:100%;max-width:375px;margin:auto 0}.form-eyebrow{font-size:13px;color:#228270;font-weight:600;letter-spacing:1px}h2{font-size:29px;font-weight:650;margin:10px 0 14px;letter-spacing:1px}.form-description{margin:0 0 34px;color:#788893;font-size:14px;line-height:1.8}label{display:block;margin:22px 0 10px;font-size:14px;color:#2c4550;font-weight:600}input{width:100%;height:50px;padding:0 15px;border:1px solid #d9e2e6;border-radius:9px;color:#213b47;background:#fff;font-family:inherit;font-size:15px;outline:none;transition:border-color .15s,box-shadow .15s}input:focus{border-color:#3c9d8b;box-shadow:0 0 0 3px #3c9d8b15}input::placeholder{color:#a2afb6;font-size:14px}.password-field{position:relative}.password-field input{padding-right:62px}.password-field button{position:absolute;right:8px;top:8px;height:34px;border:0;border-radius:5px;background:transparent;color:#6c808a;padding:0 9px;cursor:pointer;font-family:inherit;font-size:12px}.password-field button:hover{background:#f1f5f6}button:focus-visible{outline:2px solid #2b8f7d;outline-offset:3px}.submit-button{width:100%;height:51px;display:flex;align-items:center;justify-content:center;gap:18px;border:0;border-radius:9px;background:#227d6e;color:#fff;font:600 15px "Segoe UI","Microsoft YaHei",sans-serif;cursor:pointer;transition:background .15s;margin-top:28px;box-shadow:0 5px 15px #227d6e15}.submit-button:hover{background:#196b5e}.submit-button:disabled{opacity:.65;cursor:wait}.submit-button span{font-size:20px;font-weight:400}.login-error{color:#af3f39;background:#fff1ef;padding:11px 13px;border-radius:7px;font-size:13px;line-height:1.6;margin:15px 0 -10px}.login-status{font-size:12px;min-height:20px;color:#5d7b76;margin:10px 0;text-align:center}.login-help{border-top:1px solid #e8edef;margin:20px 0 0;padding-top:22px;font-size:12px;color:#8a979f;line-height:1.9}.panel-footer{font-size:11px;color:#9aa6ad;letter-spacing:1px;margin:55px 0 0}@media(max-width:800px){.login-layout{grid-template-columns:1fr}.intro{min-height:0;padding:24px 7% 30px}.brand{font-size:18px}.brand-symbol{height:38px;width:38px;font-size:23px}.brand small{font-size:8px}.intro-copy{padding:22px 0 0}.intro h1{font-size:25px;line-height:1.6;margin:10px 0 0}.intro h1 br{display:none}.intro-copy>p:last-child,.eyebrow,.intro-footer{display:none}.login-panel{padding:34px 24px 25px;min-height:65vh}.login-card{max-width:390px}h2{font-size:25px}.form-description{margin-bottom:25px}.panel-footer{margin-top:34px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Keep the optional OAuth entry absent until the backend confirms setup. */
.submit-button[hidden] { display: none; }