/* Login presentation stays scoped to the public authentication screen. */
#login-screen {
  --bg:#0c1c35; --accent:#2d6fe9; --tint:#edf4ff; --ink:#edf4ff;
  position:relative; inset:auto; min-height:100svh; margin:0; padding:0;
  align-items:stretch; justify-content:center; font:14px/1.6 "Segoe UI","Microsoft YaHei UI","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased; color:var(--ink);
  background:radial-gradient(ellipse at 29% 71%,#153b645c,transparent 57%),var(--bg);
}
#login-screen *,#login-screen *::before,#login-screen *::after{box-sizing:border-box}
#login-screen [hidden]{display:none!important}
#login-screen button,#login-screen input{font:inherit}
#login-screen button,#login-screen a{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
#login-screen button{cursor:pointer;border:0;background:none;color:inherit}
#login-screen a{color:inherit;text-decoration:none}
#login-screen button:focus-visible,#login-screen a:focus-visible{outline:3px solid #8ebaff;outline-offset:4px}
#login-screen svg{flex-shrink:0}
#login-screen button svg{pointer-events:none}
#login-screen .wrap{width:100%;max-width:1700px;min-height:100svh;margin:auto;padding:0 clamp(28px,3.8vw,64px);display:flex;flex-direction:column}
#login-screen header{height:104px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-shrink:0}
#login-screen .brand{display:flex;align-items:center;gap:12px;padding:0;margin:0;border:0;background:none}
#login-screen .brand img{width:46px;height:55px;object-fit:contain}
#login-screen .brand b{display:block;font-size:22px;font-weight:700;letter-spacing:1px;color:#f1f6ff}
#login-screen .brand small{display:block;font-size:9px;letter-spacing:3px;margin-top:3px;color:#8da9d0}
#login-screen nav{display:flex;align-items:center;gap:28px;font-size:13px;color:#a6bad5}
#login-screen nav>span{display:none}
#login-screen nav button{display:flex;align-items:center;gap:8px;font-size:13px;padding:8px 0;transition:color .18s}
#login-screen nav button:hover{color:#fff}
#login-screen main{flex:1;min-width:0;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(420px,.95fr);gap:clamp(36px,4vw,64px);padding:8px 0 16px}
#login-screen .dark-story{min-width:0;position:relative;display:flex;flex-direction:column;padding:25px 0 12px;min-height:720px;isolation:isolate}
#login-screen .eyebrow{display:flex;align-items:center;gap:12px;font-size:11px;font-weight:600;letter-spacing:2px;color:#8cb8f6}
#login-screen .eyebrow::before{content:"";width:23px;height:2px;background:currentColor}
#login-screen .dark-story h1{font-size:clamp(44px,3.55vw,60px);line-height:1.35;letter-spacing:-.8px;font-weight:700;margin:25px 0 20px;color:#f0f5ff}
#login-screen .dark-story h1 em{font-style:normal;color:#91bbff}
#login-screen .dark-description{font-size:14px;line-height:1.95;color:#a2b7d5;margin:0;max-width:440px}
#login-screen .network{position:relative;min-height:370px;flex:1;margin:22px 0 15px;display:flex;align-items:center;justify-content:center}
#login-screen .network::before{content:"";position:absolute;width:300px;height:300px;border:1px solid #476f9c44;border-radius:50%;box-shadow:0 0 0 36px #41689212,0 0 0 37px #456d9533,0 0 0 74px #315d8612;background:radial-gradient(circle,#3272ba17,transparent 70%)}
#login-screen .net-lines{position:absolute;inset:0;width:100%;height:100%;color:#50749f;opacity:.8}
#login-screen .net-lines path{fill:none;stroke:currentColor;stroke-width:1.2;stroke-dasharray:5 6}
#login-screen .net-lines circle{fill:#83c6ff;stroke:#173454;stroke-width:5}
#login-screen .evidence-node{position:absolute;width:clamp(137px,10.8vw,175px);border:1px solid #38557b;border-radius:11px;background:linear-gradient(145deg,#1a304e,#132742);padding:14px 13px;display:flex;align-items:center;gap:9px;z-index:2;box-shadow:0 10px 28px #00000016;transition:background .2s,border-color .2s,box-shadow .2s,transform .2s}
#login-screen .evidence-node svg{color:#90b8eb;width:20px;height:20px}
#login-screen .evidence-node b{display:block;font-size:13px;font-weight:600;color:#dfebff}
#login-screen .evidence-node small{display:block;font-size:10px;color:#9eb6d7;margin-top:4px;white-space:nowrap}
#login-screen .node-a{top:17%;left:0}
#login-screen .node-b{top:8%;right:0}
#login-screen .node-c{bottom:13%;left:2%}
#login-screen .node-d{bottom:19%;right:1%}
#login-screen .evidence-node.selected{border-color:#89b6f2;background:linear-gradient(145deg,#244b78,#1b365a);box-shadow:0 0 0 3px #74a9e811,0 12px 30px #0002;transform:translateY(-3px)}
#login-screen .evidence-core{position:relative;z-index:1;width:clamp(218px,17vw,265px);padding:22px;background:linear-gradient(135deg,#f0f7ff,#dceafa);border:1px solid #b4d2f3;border-radius:15px;color:#203b5b;box-shadow:0 20px 50px #04183070,0 0 45px #497eb712}
#login-screen .core-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:10px;letter-spacing:.6px;color:#526f93}
#login-screen .core-top svg{color:#537faf}
#login-screen .evidence-core h3{font-size:21px;line-height:1.5;font-weight:700;margin:22px 0 5px;letter-spacing:0;color:#183653}
#login-screen .core-sub{font-size:11px;color:#587795}
#login-screen .core-rule{height:1px;background:#c4d8ed;margin:19px 0}
#login-screen .core-row{display:flex;align-items:center;gap:7px;font-size:12px;color:#486786;margin:12px 0}
#login-screen .core-row svg{color:#26877a}
#login-screen .core-foot{border-top:1px solid #c4d8ed;margin-top:20px;padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:7px;color:#587694;font-size:9px}
#login-screen .core-foot span:last-child{color:#237769;font-size:10px;white-space:nowrap}
#login-screen .dark-caption{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-top:20px;border-top:1px solid #3e59794f}
#login-screen .stage-buttons{display:flex;align-items:center;gap:10px}
#login-screen .stage-buttons button{display:flex;align-items:center;gap:9px;padding:8px 12px;border:1px solid transparent;border-radius:9px;text-align:left;color:#a3b8d7;transition:background .18s,color .18s,border-color .18s}
#login-screen .stage-buttons b{font-size:16px;font-weight:500;color:#88a9d4;font-variant-numeric:tabular-nums}
#login-screen .stage-buttons span{font-size:13px;line-height:1.5}
#login-screen .stage-buttons small{display:block;font-size:10px;color:#96adcb;margin-top:1px}
#login-screen .stage-buttons button:hover{background:#9cbeed0c;color:#eaf3ff}
#login-screen .stage-buttons button[aria-pressed="true"]{border-color:#5e8cc154;background:#83b2ef14;color:#e0eeff}
#login-screen .stage-buttons button[aria-pressed="true"] b{color:#9dc6ff}
#login-screen .preview-note{font-size:11px;color:#9ab0cd;white-space:nowrap}
#login-screen .dark-note{font-size:12px;line-height:1.9;color:#a2b7d3;margin:14px 0 0;min-height:23px}
#login-screen .side-panel{position:relative;overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:76px clamp(32px,3.4vw,58px);border:1px solid #dae4f0;border-radius:24px;background:#fff;color:#203855;box-shadow:0 20px 80px #040f222b}
#login-screen .side-panel::before{content:"";pointer-events:none;position:absolute;top:-150px;right:-125px;width:255px;height:255px;border:1px solid #edf2f9;border-radius:50%;box-shadow:0 0 0 29px #f8faff,0 0 0 30px #eef3fa}
#login-screen .panel-label{position:absolute;top:28px;left:32px;font-size:10px;letter-spacing:1.8px;color:#7a90ad}
#login-screen .panel-corner{position:absolute;right:28px;bottom:24px;font-size:9px;letter-spacing:1.5px;color:#8a9db6}
#login-screen .login-card{position:relative;z-index:1;width:100%;max-width:390px;padding:0;border:0;border-radius:0;box-shadow:none;background:transparent}
#login-screen .login-kicker{display:flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.6px;color:#667d9a;margin-bottom:16px}
#login-screen .login-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:#2d6fe9;box-shadow:0 0 0 4px #edf4ff}
#login-screen .login-card h1{font-size:34px;line-height:1.35;letter-spacing:.4px;font-weight:700;margin:0 0 12px;color:#1e3653}
#login-screen #login-panel > h1,#login-screen #login-panel > .login-subtitle{text-align:center}
#login-screen .login-subtitle{font-size:14px;line-height:1.85;color:#637994;margin:0 0 32px}
#login-screen .login-form{display:block}
#login-screen .field{margin-bottom:23px}
#login-screen .field>label{display:block;font-size:14px;font-weight:600;color:#3f5672;margin-bottom:9px}
#login-screen .input-wrap{display:flex;align-items:center;gap:12px;height:54px;padding:0 15px;border:1px solid #d7e2f0;border-radius:10px;background:#fbfcff;color:#7f97b6;transition:border-color .18s,box-shadow .18s}
#login-screen .input-wrap:focus-within{border-color:#397bea;box-shadow:0 0 0 3px #2d6fe914;background:#fff}
#login-screen .input-wrap input{height:100%;width:100%;min-width:0;padding:0;border:0;border-radius:0;background:transparent;box-shadow:none;outline:none;font-size:15px;color:#213c59}
#login-screen input::placeholder{color:#8395ac;opacity:1}
#login-screen .input-wrap .cloud-password-field{flex:1;height:100%;min-width:0}
#login-screen .cloud-password-toggle{color:#7a91b1;border-radius:6px}
#login-screen .cloud-password-toggle:hover{color:#2466d8;background:#edf4ff}
#login-screen .options{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:3px;color:#637994}
#login-screen .options label{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:400;color:#637994;cursor:pointer;padding:3px 0}
#login-screen .options input{width:15px;height:15px;padding:0;margin:0;accent-color:#2d6fe9}
#login-screen .options button{font-size:13px;color:#2464d5;padding:3px 0}
#login-screen .options button:hover,#login-screen .auth-switch:hover{text-decoration:underline;text-underline-offset:3px}
#login-screen .login-error:empty{display:none}
#login-screen .login-error:not(:empty){min-height:0;margin:15px 0 0;padding:10px 12px;font-size:13px;line-height:1.7;color:#a12d3c;border:1px solid #f1d3d8;background:#fff6f7;border-radius:8px;overflow-wrap:anywhere}
#login-screen .runtime-status.visible:not(.error){display:none}
#login-screen .runtime-status.error{margin:15px 0 0;font-size:13px;line-height:1.7}
#login-screen .login-submit{display:flex;align-items:center;justify-content:center;gap:14px;width:100%;height:54px;margin-top:27px;padding:0 20px;border:1px solid #2d6fe9;border-radius:10px;color:#fff;background:#2d6fe9;font-size:15px;font-weight:600;box-shadow:0 4px 10px #2d6fe914;transition:background .18s,box-shadow .18s}
#login-screen .login-submit:hover{background:#2463d4;border-color:#2463d4;box-shadow:0 8px 20px #2d6fe925}
#login-screen .login-submit svg{transition:transform .18s}
#login-screen .login-submit:hover svg{transform:translateX(3px)}
#login-screen .login-submit:disabled{opacity:.65;cursor:wait;box-shadow:none}
#login-screen .register{display:flex;align-items:center;justify-content:center;gap:9px;margin-top:24px;font-size:13px;color:#637994}
#login-screen .auth-switch{display:inline-block;width:auto;margin:0;padding:0;font-size:13px;color:#2464d5}
#login-screen :is(#register-panel,#password-recovery-panel) .login-subtitle{margin-bottom:25px}
#login-screen :is(#register-form,#password-recovery-form){display:grid;gap:18px}
#login-screen :is(#register-form,#password-recovery-form) label{display:grid;gap:8px;font-size:14px;font-weight:600;color:#3f5672}
#login-screen :is(#register-form,#password-recovery-form) input{width:100%;height:50px;padding:0 14px;border:1px solid #d7e2f0;border-radius:10px;background:#fbfcff;color:#213c59;font-size:15px;outline:none;transition:border-color .18s,box-shadow .18s}
#login-screen :is(#register-form,#password-recovery-form) input:focus{border-color:#397bea;box-shadow:0 0 0 3px #2d6fe914;background:#fff}
#login-screen .field-hint,#login-screen .verification-hint{margin:0;font-size:12px;font-weight:400;line-height:1.8;color:#637994}
#login-screen .field-hint{display:block}
#login-screen .verification-row{display:flex;align-items:center;gap:10px}
#login-screen .verification-row input{flex:1;min-width:0}
#login-screen :is(#send-register-code,#send-recovery-code){flex-shrink:0;height:50px;padding:0 13px;border:1px solid #c9daf5;border-radius:10px;font-size:13px;background:#edf4ff;color:#2464d5}
#login-screen :is(#send-register-code,#send-recovery-code):hover{background:#e1edff}
#login-screen :is(#send-register-code,#send-recovery-code):disabled{opacity:.65;cursor:default}
#login-screen :is(#register-code-status,#recovery-code-status):empty,#login-screen :is(#register-error,#recovery-error):empty{display:none}
#login-screen :is(#register-code-status,#recovery-code-status){font-size:13px;color:#426588;line-height:1.8}
#login-screen :is(#register-form,#password-recovery-form) .login-error:not(:empty){margin:0}
#login-screen :is(#register-form,#password-recovery-form) .login-submit{margin-top:3px}
#login-screen :is(#show-login,#recovery-show-login){display:block;width:100%;margin-top:22px;text-align:center}
#login-screen[data-auth-mode="register"] .side-panel,#login-screen[data-auth-mode="recovery"] .side-panel{padding-top:64px;padding-bottom:58px}
#login-screen[data-auth-mode="register"] .panel-corner,#login-screen[data-auth-mode="recovery"] .panel-corner{display:none}
#login-screen #service-unavailable{font-size:14px;color:#536b87;line-height:1.8}
#login-screen #retry-service{background:#2d6fe9;color:#fff;padding:12px 18px;border-radius:9px}
#login-screen footer{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px;font-size:11px;color:#93aacc;flex-shrink:0}
#login-screen footer i{font-style:normal;opacity:.5;margin:0 12px}
#login-screen .foot-right{display:flex;align-items:center}
#login-screen dialog{width:min(440px,calc(100% - 32px));max-height:calc(100svh - 32px);overflow:auto;border:1px solid #dfe7f2;border-radius:16px;padding:28px;font-family:inherit;background:#fff;color:#203855;box-shadow:0 24px 80px #06132f44}
#login-screen dialog::backdrop{background:#06172e8c;backdrop-filter:blur(5px)}
#login-screen .human-verification-dialog{padding:22px}
#login-screen .human-check .btn{width:auto;margin:0;padding:7px 12px;border:1px solid #d7e2f0;border-radius:7px;font-size:13px;background:#f7faff;color:#466482}
#login-screen .human-check .btn:hover{background:#edf4ff;color:#2464d5}
#login-screen .human-puzzle-slider{accent-color:#2d6fe9}
#login-screen #login-help-dialog h2{margin:0 0 14px;font-size:23px;color:#203855}
#login-screen #login-help-body{font-size:14px;line-height:1.9;white-space:pre-line;color:#536b87;margin:0 0 24px}
#login-screen #login-close-help{width:100%;padding:12px 20px;border-radius:9px;background:#2d6fe9;color:#fff;font-size:14px}
#login-screen .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
@media(min-width:1101px) and (max-height:850px){
  #login-screen header{height:84px}
  #login-screen .dark-story{min-height:650px;padding-top:15px}
  #login-screen .dark-story h1{font-size:42px;margin:18px 0 14px}
  #login-screen .network{min-height:300px;margin:18px 0 10px}
  #login-screen .side-panel{padding-top:60px;padding-bottom:55px}
  #login-screen footer{min-height:54px}
}
@media(min-width:1101px) and (max-width:1320px){
  #login-screen .evidence-node{width:133px;padding:12px 10px;gap:7px}
  #login-screen .evidence-node b{font-size:12px}
  #login-screen .evidence-node small{font-size:9px}
  #login-screen .evidence-core{width:216px;padding:18px}
  #login-screen .evidence-core h3{font-size:19px}
  #login-screen .core-row{font-size:11px}
  #login-screen .network::before{width:255px;height:255px}
  #login-screen .preview-note{display:none}
  #login-screen .stage-buttons{gap:6px}
}
@media(max-width:1100px){
  #login-screen .wrap{padding:0 28px;max-width:780px}
  #login-screen header{height:92px}
  #login-screen main{display:flex;flex-direction:column;gap:28px;padding:0 0 12px}
  #login-screen .dark-story{min-height:0;padding:18px 4px 0}
  #login-screen .dark-story h1{font-size:36px;margin:18px 0 12px;letter-spacing:-.5px}
  #login-screen .dark-story h1 br{display:none}
  #login-screen .dark-story h1 em{margin-left:.2em}
  #login-screen .dark-description{font-size:13px;max-width:none}
  #login-screen .network,#login-screen .dark-caption,#login-screen .dark-note{display:none}
  #login-screen .side-panel{padding:48px 40px;border-radius:22px}
  #login-screen .panel-label,#login-screen .panel-corner{display:none}
  #login-screen .login-card{max-width:440px}
  #login-screen[data-auth-mode="register"] .side-panel,#login-screen[data-auth-mode="recovery"] .side-panel{padding-top:40px;padding-bottom:38px}
  #login-screen footer{min-height:70px;font-size:10px;justify-content:center;text-align:center}
  #login-screen .foot-right{display:none}
}
@media(max-width:560px){
  #login-screen .wrap{padding:0 20px}
  #login-screen header{height:83px;gap:12px}
  #login-screen .brand{gap:9px}
  #login-screen .brand img{width:34px;height:43px}
  #login-screen .brand b{font-size:19px;letter-spacing:.5px}
  #login-screen .brand small{font-size:7px;letter-spacing:2.3px}
  #login-screen nav{gap:0}
  #login-screen nav button{font-size:12px}
  #login-screen .eyebrow{font-size:9px;letter-spacing:1.4px;gap:9px}
  #login-screen .eyebrow::before{width:19px}
  #login-screen .dark-story{padding:12px 2px 0}
  #login-screen .dark-story h1{font-size:clamp(25px,6.4vw,34px);margin:15px 0 10px;letter-spacing:-.7px}
  #login-screen .dark-story h1 em{margin-left:0}
  #login-screen .dark-description{font-size:12px;line-height:1.85}
  #login-screen main{gap:23px}
  #login-screen .side-panel{padding:32px 23px;border-radius:18px}
  #login-screen .login-card h1{font-size:29px}
  #login-screen .login-subtitle{font-size:13px;margin-bottom:27px}
  #login-screen .login-kicker{font-size:11px;margin-bottom:14px}
  #login-screen .field{margin-bottom:21px}
  #login-screen .input-wrap{height:52px;padding:0 12px;gap:10px}
  #login-screen :is(#register-form,#password-recovery-form){gap:16px}
  #login-screen :is(#register-form,#password-recovery-form) input{font-size:14px;padding:0 11px}
  #login-screen :is(#send-register-code,#send-recovery-code){font-size:12px;padding:0 10px}
  #login-screen .verification-row{gap:7px}
  #login-screen[data-auth-mode="register"] .side-panel,#login-screen[data-auth-mode="recovery"] .side-panel{padding:30px 22px}
  #login-screen footer{font-size:9px;min-height:64px}
}
@media(prefers-reduced-motion:reduce){#login-screen *,#login-screen *::before,#login-screen *::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
#login-screen #login-recovery-success{padding:12px;border-radius:8px;background:#edf8f2;color:#256748;font-size:13px;line-height:1.7}