/* ==========================================
   拍卖系统管理后台 - 登录页
   ========================================== */
* { margin:0; padding:0; box-sizing:border-box; }
body {
    min-height:100vh;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
    display:flex;
    align-items:center;
    justify-content:center;
    font-family:"PingFang SC","Microsoft YaHei",sans-serif;
    position:relative;
    overflow:hidden;
}
/* 背景装饰 */
body::before {
    content:'';
    position:absolute;
    width:600px; height:600px;
    background:radial-gradient(circle, rgba(212,168,83,0.15), transparent 70%);
    top:-200px; right:-200px;
    border-radius:50%;
}
body::after {
    content:'';
    position:absolute;
    width:400px; height:400px;
    background:radial-gradient(circle, rgba(58,123,213,0.1), transparent 70%);
    bottom:-150px; left:-150px;
    border-radius:50%;
}
/* 登录容器 */
.login-wrapper {
    position:relative;
    z-index:1;
    width:420px;
    background:rgba(255,255,255,0.97);
    border-radius:16px;
    box-shadow:0 20px 60px rgba(0,0,0,0.3);
    padding:48px 40px 36px;
    backdrop-filter:blur(10px);
}
/* LOGO 区域 */
.login-logo {
    text-align:center;
    margin-bottom:32px;
}
.login-logo .logo-icon {
    width:64px; height:64px;
    border-radius:50%;
    background:linear-gradient(135deg,#1a1a2e,#0f3460);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:32px;
    margin-bottom:16px;
}
.login-logo .logo-icon i { color:#d4a853; }
.login-logo h2 {
    font-size:22px;
    font-weight:600;
    color:#1a1a2e;
    letter-spacing:2px;
}
.login-logo p {
    font-size:13px;
    color:#909399;
    margin-top:6px;
}
/* 表单 */
.login-form .form-group {
    margin-bottom:22px;
    position:relative;
}
.login-form .form-group label {
    display:block;
    font-size:14px;
    color:#606266;
    margin-bottom:8px;
    font-weight:500;
}
.login-form .form-input {
    width:100%;
    height:46px;
    border:1px solid #dcdfe6;
    border-radius:8px;
    padding:0 44px 0 16px;
    font-size:14px;
    color:#303133;
    transition:all 0.2s;
    background:#fafafa;
}
.login-form .form-input:focus {
    outline:none;
    border-color:#d4a853;
    background:#fff;
    box-shadow:0 0 0 3px rgba(212,168,83,0.08);
}
.login-form .form-input::placeholder { color:#c0c4cc; }
.login-form .input-icon {
    position:absolute;
    right:14px;
    bottom:12px;
    font-size:18px;
    color:#c0c4cc;
}
/* 登录按钮 */
.login-btn {
    width:100%;
    height:48px;
    border:none;
    border-radius:8px;
    background:linear-gradient(135deg,#1a1a2e,#0f3460);
    color:#e0d5c0;
    font-size:16px;
    font-weight:600;
    letter-spacing:2px;
    cursor:pointer;
    transition:all 0.3s;
    margin-top:4px;
}
.login-btn:hover {
    transform:translateY(-1px);
    box-shadow:0 8px 20px rgba(26,26,46,0.35);
}
.login-btn:active { transform:translateY(0); }
/* 提示 */
.login-tip {
    text-align:center;
    margin-top:20px;
    font-size:12px;
    color:#c0c4cc;
    line-height:1.8;
}
.login-tip span {
    background:#f0f2f5;
    padding:2px 8px;
    border-radius:3px;
    font-family:monospace;
}
/* layui 表单兼容 */
.login-form .layui-form-item { margin-bottom:22px; }
.login-form .layui-form-label {
    width:auto;
    float:none;
    display:block;
    text-align:left;
    padding:0 0 8px 0;
    font-size:14px;
    color:#606266;
    font-weight:500;
}
.login-form .layui-input-block {
    margin-left:0;
}
.login-form .layui-input {
    height:46px;
    border-radius:8px;
    border-color:#dcdfe6;
    background:#fafafa;
}
.login-form .layui-input:focus {
    border-color:#d4a853;
    box-shadow:0 0 0 3px rgba(212,168,83,0.08);
}
.login-form .layui-btn-fluid {
    height:48px;
    line-height:48px;
    border-radius:8px;
    font-size:16px;
    font-weight:600;
    letter-spacing:2px;
    background:linear-gradient(135deg,#1a1a2e,#0f3460);
    border:none;
    color:#e0d5c0;
}
.login-form .layui-btn-fluid:hover {
    transform:translateY(-1px);
    box-shadow:0 8px 20px rgba(26,26,46,0.35);
}
/* 验证码 */
.captcha-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
}
.captcha-input {
    flex: 1;
    text-transform: lowercase;
}
.captcha-img {
    width: 110px;
    height: 46px;
    border-radius: 8px;
    border: 1px solid #dcdfe6;
    cursor: pointer;
    background: #fafafa;
}