:root{font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:#223b50;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}
.ark-login{min-height:100vh;min-height:100svh;position:relative;overflow:hidden;display:flex;flex-direction:column;background:#1479ae;color:#fff;isolation:isolate}
.ark-login-header{display:flex;align-items:center;gap:25px;padding:30px clamp(24px,5vw,88px);z-index:2}
.ark-login-brand{display:flex;align-items:center;gap:14px;font-size:44px;font-weight:700;letter-spacing:3px;line-height:1.15;white-space:nowrap}
.ark-login-brand img{width:1.15em;height:1.15em;object-fit:contain;flex:none}
.ark-login-subbrand{border-left:1px solid #ffffff55;padding-left:24px;letter-spacing:2px;font-size:17px;line-height:1.8}
.ark-login-subbrand span{display:block;font-size:9px;letter-spacing:2px;color:#d4ebf5}
.ark-login-main{width:min(1180px,90%);margin:16px auto 24px;flex:1;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(370px,470px);gap:clamp(35px,6vw,90px);align-items:center;position:relative;z-index:2;pointer-events:none}
.ark-login-story{min-width:0;align-self:start;padding-top:50px;pointer-events:none}
.ark-login-kicker{font-size:13px;letter-spacing:3px;color:#d7edf6;margin:0 0 18px}
.ark-login-story h1{font-size:clamp(30px,3.5vw,46px);font-weight:600;line-height:1.5;letter-spacing:2px;margin:0;text-shadow:0 2px 15px #12648f44}
.ark-login-panel{width:100%;padding:34px 38px 24px;border-radius:36px;background:rgba(246,246,240,.9);border:1px solid #ffffff66;color:#293f50;box-shadow:0 18px 70px #06457024;pointer-events:auto}
.ark-panel-top{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:16px;line-height:1.5;color:#73818a}
.ark-panel-tag{color:#445763;font-size:14px}
.ark-login-panel h2{font-size:32px;letter-spacing:1px;line-height:1.35;font-weight:500;margin:40px 0 12px}
.ark-login-welcome{font-size:13px;line-height:1.7;color:#687a86;margin:0 0 24px}
.ark-input-wrap{position:relative;display:flex;align-items:center;gap:10px;min-height:64px;background:rgba(255,255,255,.57);border:1px solid transparent;border-radius:35px;padding:7px 15px 7px 8px;margin:0 0 19px;transition:background .2s,border-color .2s,box-shadow .2s}
.ark-input-wrap:focus-within{background:#ffffffd9;border-color:#316e98;box-shadow:0 0 0 3px #316e981a}
.ark-input-icon{display:flex;align-items:center;justify-content:center;flex:0 0 46px;height:46px;border-radius:50%;background:#ffffffad}
.ark-input-icon img{width:24px;height:24px;opacity:.7}
.ark-input-wrap input{width:100%;min-width:0;height:46px;background:transparent;border:0;outline:none;font-size:16px;color:#293f50;padding:0 5px}
.ark-input-wrap input::placeholder{color:#73808a;font-size:14px;opacity:1}
.login-error{font-size:13px;color:#973541;line-height:1.7;margin:0 0 15px;overflow-wrap:anywhere}
.login-error:empty{display:none}
.ark-login-bottom{display:flex;align-items:center;justify-content:space-between;gap:17px;margin-top:25px}
.ark-login-bottom p{font-size:12px;line-height:1.8;color:#687680;margin:0}
.auth-login{display:flex;align-items:center;justify-content:center;gap:17px;flex:none;min-width:110px;height:52px;padding:0 22px;border:0;border-radius:30px;color:white;background:#243d50;font-size:15px;transition:background .15s,transform .15s}
.auth-login img{width:20px;height:20px;filter:brightness(0) invert(1)}
.auth-login:hover{background:#164e71;transform:translateX(2px)}
button:focus-visible{outline:3px solid #ebad83;outline-offset:4px}
.ark-login-role-note{text-align:center;margin:25px 0 0;letter-spacing:3px;font-size:11px;color:#7a878e}




.ark-login-footer{padding:12px 25px 25px;display:flex;align-items:center;justify-content:center;gap:17px;flex-wrap:wrap;font-size:11px;letter-spacing:1px;color:#d0e8f2;position:relative;z-index:3}
.ark-login-footer a{color:inherit;text-decoration:none;letter-spacing:0}.ark-login-footer a:hover{text-decoration:underline}.ark-login-footer a:focus-visible{outline:2px solid #f5ca49;outline-offset:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:900px){.ark-login-header{padding:25px 5%;gap:18px}.ark-login-subbrand{font-size:14px;padding-left:18px}.ark-login-main{gap:28px;grid-template-columns:minmax(0,1fr) minmax(330px,430px)}.ark-login-panel{padding:32px 29px}.ark-login-story h1{font-size:29px;letter-spacing:1px}.ark-login-kicker{letter-spacing:1px}}
@media(max-width:680px){.ark-login-header{padding:24px}.ark-login-brand{font-size:36px;gap:11px}.ark-login-subbrand{display:none}.ark-login-main{display:flex;flex-direction:column;gap:24px;width:min(460px,calc(100% - 36px));margin:8px auto 25px}.ark-login-story{padding:0;width:100%;align-self:auto}.ark-login-kicker{font-size:11px;margin-bottom:10px}.ark-login-story h1{font-size:23px;line-height:1.5}.ark-login-story h1 br{display:none}.ark-login-panel{padding:28px 25px 25px;border-radius:28px}.ark-login-panel h2{margin-top:30px;font-size:29px}.ark-login-bottom{gap:10px}.ark-login-bottom p{font-size:11px}.auth-login{min-width:98px;padding:0 17px}.ark-login-footer{gap:10px;font-size:10px}}
@media(prefers-reduced-motion:reduce){.auth-login,.ark-input-wrap{transition:none}}

.ark-login-scene{display:block;width:min(570px,100%);height:auto;margin:25px 0 0;user-select:none}
@media(max-width:680px){.ark-login-scene{width:min(340px,100%);margin:16px auto 0}}