/*
 * Copyright (c) 2016-2026 山东魔豆网络科技有限公司
 * 本代码归属山东魔豆网络科技有限公司，未经书面许可禁止复制、分发、商用
 */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: #f3f6fc;
    color: #1f2937;
    min-height: 100vh;
}
a { text-decoration: none; color: #2f6fed; }
.login-shell { display: flex; min-height: 100vh; }

.login-visual {
    width: 46%;
    background: radial-gradient(1200px 700px at 15% 10%, #2b5fd9 0%, #162b58 45%, #0b1424 100%);
    color: #fff;
    padding: 52px 60px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}
.login-visual::after {
    content: "";
    position: absolute;
    width: 520px; height: 520px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 50%;
    right: -180px; bottom: -180px;
}
.login-visual::before {
    content: "";
    position: absolute;
    width: 300px; height: 300px;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 50%;
    right: -60px; bottom: -60px;
}
.brand-line { display: flex; align-items: center; gap: 12px; position: relative; z-index: 1; }
.brand-mark {
    width: 44px; height: 44px; border-radius: 12px;
    background: linear-gradient(135deg,#5b93ff,#2f6fed);
    display: grid; place-items: center;
    font-size: 22px; font-weight: 800;
    box-shadow: 0 10px 26px rgba(47,111,237,.4);
}
.brand-title { font-size: 15px; font-weight: 600; letter-spacing: .02em; }
.brand-sub { font-size: 11px; color: rgba(255,255,255,.55); letter-spacing: .14em; }

.visual-body { margin-top: auto; margin-bottom: auto; position: relative; z-index: 1; max-width: 520px; }
.visual-body h1 { font-size: 38px; line-height: 1.3; margin: 0 0 18px; letter-spacing: -.02em; }
.visual-body h1 em { font-style: normal; color: #9dc0ff; }
.visual-body p { color: rgba(255,255,255,.66); font-size: 14.5px; line-height: 1.9; margin: 0 0 30px; }
.feature-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.feature {
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.055);
    border-radius: 12px;
    padding: 14px 16px;
    backdrop-filter: blur(6px);
}
.feature b { display: block; font-size: 13.5px; margin-bottom: 3px; }
.feature span { font-size: 11.5px; color: rgba(255,255,255,.55); line-height: 1.6; }
.visual-foot { position: relative; z-index: 1; font-size: 11.5px; color: rgba(255,255,255,.4); }

.login-panel { flex: 1; display: flex; align-items: center; justify-content: center; padding: 40px 24px; }
.login-card { width: 100%; max-width: 400px; }
.login-card h2 { font-size: 26px; margin: 0 0 6px; letter-spacing: -.02em; }
.login-card .desc { color: #8a94a6; font-size: 13.5px; margin: 0 0 30px; }
.login-card form { margin: 0; }
.form-item { margin-bottom: 18px; }
.form-item label { display: block; font-size: 12.5px; color: #4b5563; font-weight: 600; margin-bottom: 7px; }
.form-item input {
    width: 100%; height: 46px; border: 1px solid #d8dee9; border-radius: 10px;
    padding: 0 14px; font-size: 14px; outline: none; background: #fff;
    transition: all .15s;
}
.form-item input:focus { border-color: #2f6fed; box-shadow: 0 0 0 3px rgba(47,111,237,.12); }
.login-error {
    background: #fef2f2; border: 1px solid #fecaca; color: #b42318;
    border-radius: 9px; padding: 10px 13px; font-size: 13px; margin-bottom: 18px;
}
.submit-btn {
    width: 100%; height: 46px; border: 0; border-radius: 10px;
    background: linear-gradient(135deg,#2f6fed,#1d4ed8);
    color: #fff; font-size: 15px; font-weight: 600; cursor: pointer;
    box-shadow: 0 10px 24px rgba(47,111,237,.25);
}
.submit-btn:hover { filter: brightness(1.05); }
.login-tips { margin-top: 26px; font-size: 12px; color: #9aa4b5; line-height: 1.8; }
.login-tips a { color: #2f6fed; }

@media (max-width: 900px) {
    .login-visual { display: none; }
    .login-panel { background: radial-gradient(900px 500px at 50% -10%, #e8efff, #f3f6fc 60%); }
}