/** 页面级样式（迁移自 pages/login.php 内联 style 块） */

        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: "Microsoft YaHei", sans-serif;
            background: linear-gradient(135deg, #4e73df, #224abe);
            color: #333;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            position: relative;
        }
        .bg-icons { position: absolute; top: 0; left: 0; width: 100%; height: 100%; overflow: hidden; z-index: 0; }
        .bg-icon { position: absolute; color: rgba(255,255,255,0.1); font-size: 30px; animation: float 15s infinite ease-in-out; }
        @keyframes float {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            25% { transform: translateY(-20px) rotate(5deg); }
            50% { transform: translateY(-10px) rotate(-5deg); }
            75% { transform: translateY(-30px) rotate(3deg); }
        }
        .login-box {
            width: 90%;
            max-width: 400px;
            display: flex;
            flex-direction: column;
            align-items: center;
            z-index: 1;
        }
        .login-header {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 24px;
            opacity: 0;
            animation: headerFadeIn 1s ease forwards;
        }
        @keyframes headerFadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        .logo-icon {
            width: 80px;
            height: 80px;
            background: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.2);
            overflow: hidden;
        }
        .logo-icon i { font-size: 40px; color: #4e73df; }
        .logo-icon img { width: 100%; height: 100%; object-fit: cover; display: block; }
        .login-title { font-size: 28px; color: white; margin-bottom: 8px; font-weight: bold; text-align: center; }
        .slogan-text { font-size: 14px; color: rgba(255,255,255,0.9); text-align: center; }
        .login-form {
            width: 100%;
            background: white;
            padding: 30px 20px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .form-item { margin-bottom: 20px; }
        .form-item label { display: block; margin-bottom: 8px; font-size: 14px; color: #666; }
        .form-item input {
            width: 100%;
            height: 42px;
            border: 1px solid #eee;
            border-radius: 8px;
            padding: 0 15px;
            font-size: 15px;
            outline: none;
        }
        .form-item input:focus { border-color: #4e73df; }
        .login-btn {
            width: 100%;
            height: 48px;
            background: #4e73df;
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
        }
        .form-footer { margin-top: 20px; text-align: center; font-size: 13px; color: #999; }
        .form-footer a { color: #4e73df; text-decoration: none; }
        .error-msg {
            background: #fee;
            color: #f56c6c;
            padding: 10px;
            border-radius: 6px;
            margin-bottom: 15px;
            font-size: 13px;
        }