/**
 * ADMIN-REBUILD：登录页（admin-shell token 同源，业主 2026-07-29 点名重做）。
 * 左品牌面板 + 右白卡表单；暗色随 admin-shell-prefs（data-theme）；零 layui。
 */
:root {
    --lg-bg: #f1f1f1;
    --lg-surface: #ffffff;
    --lg-panel: #1a1a1a;
    --lg-text: #303030;
    --lg-text-strong: #1a1a1a;
    --lg-text-sub: #616161;
    --lg-border: #e3e3e3;
    --lg-brand: #009ada;
    --lg-brand-dark: #0b86c4;
    --lg-fail: #8e1f0b;
    --lg-fail-bg: #fdeae7;
    --lg-radius: 10px;
    --lg-shadow: 0 1px 2px rgba(26, 26, 26, .07), 0 12px 40px rgba(26, 26, 26, .12);
}
:root[data-theme="dark"] {
    --lg-bg: #1a1a1a;
    --lg-surface: #262626;
    --lg-panel: #111111;
    --lg-text: #d4d4d4;
    --lg-text-strong: #f1f1f1;
    --lg-text-sub: #9a9a9a;
    --lg-border: #3a3a3a;
    --lg-fail: #f87171;
    --lg-fail-bg: #3d1a16;
    --lg-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 40px rgba(0, 0, 0, .5);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body.login-body {
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--lg-bg);
    color: var(--lg-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    -webkit-font-smoothing: antialiased;
}

.login-card {
    display: flex;
    width: 100%;
    max-width: 860px;
    min-height: 520px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--lg-shadow);
    background: var(--lg-surface);
}

/* —— 左：品牌面板 —— */
.login-brand {
    position: relative;
    flex: 1 1 46%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 44px 40px;
    background:
        radial-gradient(120% 90% at 85% -10%, rgba(0, 154, 218, .55), transparent 60%),
        radial-gradient(110% 80% at -10% 110%, rgba(11, 134, 196, .35), transparent 55%),
        var(--lg-panel);
    color: #f1f1f1;
}
.login-brand .brand-row {
    display: flex;
    align-items: center;
    gap: 12px;
}
.login-brand .logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--lg-brand);
    color: #fff;
    font-size: 22px;
    font-weight: 800;
}
.login-brand .brand-name { font-size: 20px; font-weight: 700; letter-spacing: .3px; }
.login-brand .brand-sub { margin-top: 6px; color: rgba(241, 241, 241, .64); font-size: 13px; }
.login-brand .brand-foot { color: rgba(241, 241, 241, .38); font-size: 12px; }

/* —— 右：表单 —— */
.login-main {
    flex: 1 1 54%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 44px 48px;
}
.login-main h1 {
    margin: 0 0 4px;
    color: var(--lg-text-strong);
    font-size: 22px;
    font-weight: 700;
}
.login-main .login-sub { margin: 0 0 28px; color: var(--lg-text-sub); font-size: 13px; }

.login-field { margin-bottom: 16px; }
.login-field label {
    display: block;
    margin-bottom: 6px;
    color: var(--lg-text-sub);
    font-size: 12.5px;
    font-weight: 550;
}
.login-input {
    width: 100%;
    height: 42px;
    padding: 0 12px;
    border: 1px solid var(--lg-border);
    border-radius: var(--lg-radius);
    background: var(--lg-surface);
    color: var(--lg-text-strong);
    font-size: 14px;
    outline: none;
    transition: border-color .12s ease, box-shadow .12s ease;
}
.login-input:focus {
    border-color: var(--lg-brand);
    box-shadow: 0 0 0 3px rgba(0, 154, 218, .18);
}

.captcha-row { display: flex; gap: 10px; }
.captcha-row .login-input { flex: 1; }
.captcha-row img {
    height: 42px;
    border: 1px solid var(--lg-border);
    border-radius: var(--lg-radius);
    cursor: pointer;
    background: #fff;
}

.login-error {
    display: none;
    margin-bottom: 16px;
    padding: 9px 12px;
    border-radius: var(--lg-radius);
    background: var(--lg-fail-bg);
    color: var(--lg-fail);
    font-size: 13px;
    line-height: 1.45;
}
.login-error.show { display: block; }

.login-submit {
    width: 100%;
    height: 44px;
    margin-top: 6px;
    border: none;
    border-radius: var(--lg-radius);
    background: var(--lg-brand);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background .12s ease, transform .05s ease;
}
.login-submit:hover { background: var(--lg-brand-dark); }
.login-submit:active { transform: translateY(1px); }
.login-submit:disabled { opacity: .6; cursor: default; }

/* —— 移动端：单栏 —— */
@media (max-width: 720px) {
    .login-card { flex-direction: column; min-height: 0; }
    .login-brand { flex: none; padding: 28px 28px 24px; }
    .login-brand .brand-foot { display: none; }
    .login-main { padding: 28px; }
}