/* 登录页：左侧系统介绍，右侧登录表单。独立于工作台样式，只作用于 #login-screen。 */
#login-screen{position:fixed;inset:0;z-index:500;display:grid;grid-template-columns:minmax(0,2fr) minmax(420px,1fr);place-items:stretch;padding:0;background:#fff;color:#0a0a0a;overflow:auto;
  font:14px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
#login-screen.hide{display:none!important}
#login-screen *{box-sizing:border-box}
#login-screen svg{flex:0 0 auto}

.login-intro{position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;min-height:700px;
  padding:36px 44px 40px;background:#fff;border-right:1px solid #eee}
/* 透视网格底纹：只做氛围，中心清晰、四周淡出。 */
.login-grid{position:absolute;inset:-30% -20%;pointer-events:none;
  background-image:linear-gradient(#e7e7e7 1px,transparent 1px),linear-gradient(90deg,#e7e7e7 1px,transparent 1px);
  background-size:56px 56px;transform:perspective(1100px) rotateX(22deg) rotateZ(-14deg);
  -webkit-mask-image:radial-gradient(ellipse 42% 46% at 52% 50%,#000 10%,transparent 72%);
  mask-image:radial-gradient(ellipse 42% 46% at 52% 50%,#000 10%,transparent 72%)}
.login-grid::before,.login-grid::after{content:"";position:absolute;width:56px;height:112px;background:#f2f2f2}
.login-grid::before{left:calc(50% - 168px);top:calc(50% - 112px)}
.login-grid::after{left:calc(50% + 56px);top:calc(50% + 56px);height:56px}
.login-mark,.login-quote{position:relative}
.login-mark{font-size:17px;font-weight:600;letter-spacing:.01em}
.login-quote{margin:0;max-width:560px}
.login-quote blockquote{margin:0;font-size:21px;line-height:1.7;font-weight:500;letter-spacing:.01em}
.login-quote figcaption{margin-top:12px;color:#737373;font-size:14px}

.login-panel{display:flex;align-items:center;justify-content:center;min-height:700px;padding:40px clamp(32px,4vw,64px)}
.login-main{width:min(384px,100%);padding:40px 0;border-top:1px solid #e8e8e8;border-bottom:1px solid #e8e8e8}
.login-eyebrow{margin:0 0 4px;color:#525252;font-size:12px;letter-spacing:.16em}
.login-main h1{margin:0;font-size:20px;line-height:1.4;font-weight:650}
.login-lead{margin:28px 0 0;padding-bottom:28px;border-bottom:1px solid #e8e8e8;color:#737373;font-size:14px;line-height:1.8}
.login-method-label{margin:28px 0 12px;color:#666;font-size:13px;line-height:1.6}
.login-feishu{height:40px;display:flex;align-items:center;justify-content:center;gap:8px;border:1px solid #000;border-radius:6px;
  background:#000;color:#fff;font-size:14.5px;font-weight:600;text-decoration:none;transition:background .15s,border-color .15s}
.login-feishu:hover{border-color:#262626;background:#262626}
.login-feishu svg{width:20px;height:20px}
.login-feishu[aria-disabled="true"]{background:#fafafa;color:#a3a3a3;cursor:not-allowed}
.login-alternative{margin-top:12px;min-height:24px}
.login-alternative>summary{width:fit-content;margin:0 auto;padding:4px 0;list-style:none;color:#737373;font-size:12.5px;cursor:pointer}
.login-alternative>summary::-webkit-details-marker{display:none}
.login-alternative>summary:hover{color:#0a0a0a;text-decoration:underline;text-underline-offset:4px}
.login-alternative>summary:focus-visible{outline:2px solid #0a0a0a;outline-offset:4px}
.login-alternative[open]>.login-form{margin-top:20px}
.login-form{display:grid}
.login-form label{margin:0 0 8px;font-size:14px;font-weight:600}
.login-form input{width:100%;height:46px;padding:0 14px;border:1px solid #e5e5e5;border-radius:8px;background:#fff;
  color:#0a0a0a;font:inherit;font-size:15px;outline:none;transition:border-color .15s}
.login-form input::placeholder{color:#a3a3a3}
.login-form input:focus{border-color:#0a0a0a}
.login-form input:autofill{box-shadow:0 0 0 1000px #fff inset;-webkit-text-fill-color:#0a0a0a;caret-color:#0a0a0a}
.login-form input:-webkit-autofill{box-shadow:0 0 0 1000px #fff inset;-webkit-text-fill-color:#0a0a0a;caret-color:#0a0a0a}
.login-form>input{margin-bottom:22px}
.login-password{position:relative}.login-password input{padding-right:46px}
.login-feishu:focus-visible,.login-submit:focus-visible,.login-eye:focus-visible{outline:2px solid #0a0a0a;outline-offset:2px}
.login-eye{position:absolute;top:50%;right:6px;width:34px;height:34px;display:grid;place-items:center;transform:translateY(-50%);
  padding:0;border:0;border-radius:6px;background:none;color:#a3a3a3;cursor:pointer}
.login-eye:hover{background:#f0f0f0;color:#0a0a0a}
.login-eye svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.login-eye-hide,.login-eye[aria-pressed="true"] .login-eye-show{display:none}
.login-eye[aria-pressed="true"] .login-eye-hide{display:block}
.login-message{margin:12px 0 0;color:#dc2626;font-size:13px}
.login-submit{height:46px;margin-top:22px;border:0;border-radius:8px;background:#171717;color:#fff;font:inherit;font-size:15px;
  font-weight:600;cursor:pointer;transition:background .15s}
.login-submit:hover{background:#000}
.login-submit:disabled{opacity:.5;cursor:default}
.login-note{display:flex;align-items:center;gap:10px;margin:28px 0 0;color:#737373;font-size:13px;line-height:1.8}
.login-note svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

@media (max-width:900px){
  #login-screen{grid-template-columns:1fr}
  .login-intro{display:none}
  .login-panel{min-height:min-content;padding:32px 24px}
  .login-main{padding:24px 0;border:0}
}